{"title":"ETDRS","description":"","products":[{"product_id":"replacement-lamp-for-2425-etdrs-cabinet","title":"Replacement Bulbs (Set) for Original ETDRS®Illuminator Cabinet","description":"\u003cp\u003eReplacement Lamp for Cat. No. 2425 ETDRS® Illuminator Cabinet\u003c\/p\u003e\n\u003ch2 style=\"font-size: 2em; padding-left: 15px;\"\u003eImportant Information For Clinical Trials \u0026amp; Vision Researchers\u003c\/h2\u003e\n\u003cp\u003e\u003ca style=\"background-color: #e60000; border: 0; border-bottom: 3px solid #bf0000; color: #fff; cursor: pointer; display: inline-block; font-size: 15px; padding: 8px 15px; text-decoration: none; text-transform: uppercase; border-radius: .3em;\" href=\"https:\/\/precision-vision.com\/illuminator-cabinet-age-replacement-policy\/\"\u003eRead Information\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eReplacement Lamps provide fluorescent lighting which incorporates high efficiency and longer life. It is recommended that lamps be replaced annually.\u003c\/p\u003e\n\u003cp\u003eEach Illuminator Cabinet requires (2) two lamps and are\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e sold as a set of 2.\u003c\/strong\u003e \u003c\/span\u003e It is recommended that both lamps be replaced at the same time. To ensure proper Illumination \u0026amp; Uniformity: \u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2022\/09\/ed771923-bulb-oem-warning.pdf\"\u003eOnly Order OEM Replacement Parts from Precision Vision, Inc.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eCabinets manufactured before November 2008 have a removable fenestrated sleeve that is placed over the lamp. Replacement lamps for those cabinets are Catalog No. 2427.  Please \u003ca href=\"https:\/\/precision-vision.com\/about-precision-vision\/contact-us\/\"\u003econtact us\u003c\/a\u003e directly for this replacement lamp.\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"2425Ev4","offer_id":45921479360673,"sku":"2427D-V4","price":125.0,"currency_code":"USD","in_stock":true},{"title":"2425Ev3","offer_id":45921479393441,"sku":"2427D-BI-V3","price":92.0,"currency_code":"USD","in_stock":true},{"title":"2425Ev2 (120 volt)","offer_id":45921479426209,"sku":"2427D-BI-120V2","price":92.0,"currency_code":"USD","in_stock":true},{"title":"2425Ev2 (230 volt)","offer_id":45921479458977,"sku":"2427D-BI-230V2","price":92.0,"currency_code":"USD","in_stock":true},{"title":"2425E (120 volt)","offer_id":45921479491745,"sku":"2427D-BI-120V1","price":92.0,"currency_code":"USD","in_stock":true},{"title":"2425E (230 volt)","offer_id":45921479524513,"sku":"2427D-BI-230V1","price":92.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/pv-1.jpg?v=1776157129"},{"product_id":"multi-contrast-sloan-letter-flip-book","title":"SLOAN Letter Flip Book","description":"\u003cp\u003eNotations in M letter sizes ranging from 20M to 1.6M for testing at various distances. Each page it's own contrast level at 100%, 2.5% and 1.25% . This flip book is the smaller version of the Cat. No. 2125. Cat. No. 2180 includes three levels of contrast sensitivity; Acuity, 2.5% and 1.25%. This contrast flip book is great for the use in clinical trials and research studies. It is printed on opaque, high-impact polystyrene and is washable. The test chart is also bound and includes instructions and recording forms. Each level uses traditional Sloan optotypes in an ETDRS format for an equally difficult test from beginning to end. Every level uses a different series of optotypes to help reduce any possibility of memorization. Also, each contrast sensitivity level is highly calibrated and will produce accurate results. This flip book is an excellent choice for research because of its accuracy and reliability.\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921479557281,"sku":"2180","price":269.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/ccb4e23c8aa216f1e96d31ab209c036b_XL.jpg?v=1776157125"},{"product_id":"85-cd-m2-lamp-filter-tube","title":"85 cd\/m2 Lamp Filter Tube","description":"\u003cp style=\"color: #000000; font-family: Arial, Helvetica, sans-serif; line-height: normal;\"\u003eSet of two filter tubes for converting existing light levels on your ETDRS Illuminator Cabinet from the standard 160 cd\/m\u003csup\u003e2\u003c\/sup\u003e to 85 cd\/m\u003csup\u003e2\u003c\/sup\u003e. Slides over the existing fluorescent lamps.\u003c\/p\u003e\n\u003cp style=\"color: #000000; font-family: Arial, Helvetica, sans-serif; line-height: normal;\"\u003eThe filter tubes are guaranteed to maintain their properties for one year (defined as ten hours a day for 365 days). It takes only about one minute to install the filter tubes, which cost only $51.75 per cabinet.\u003c\/p\u003e\n\u003cp style=\"color: #000000; font-family: Arial, Helvetica, sans-serif; line-height: normal;\"\u003eSince most clinical trials replace bulbs after one year the replacement schedule for the bulb and filter are a perfect match.\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921479590049,"sku":"2427D85","price":51.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/pv-5.jpg?v=1776157126"},{"product_id":"glare-source","title":"Glare source","description":"\u003cp\u003e\u003cspan style=\"color: #000000; font-family: Arial, Helvetica, sans-serif; line-height: normal;\"\u003eThis glare source with halogen lamps controls brightness for vision testing, and retrofits all of our ETDRS Illuminator cabinets.  Bulbs are positioned on each side of the cabinet and illumination can be controlled by remote control.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul style=\"color: #000000; font-family: Arial, Helvetica, sans-serif; line-height: normal;\"\u003e\n\u003cli\u003eHalogen Lamps\u003c\/li\u003e\n\u003cli\u003eRetrostat controlled for any brightness.\u003c\/li\u003e\n\u003cli\u003eRetrofits all ETDRS Illuminator cabinets\u003c\/li\u003e\n\u003cli\u003eRemote control included\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCat. No. 2425 Illuminator Cabinet not included\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"color: #000000; font-family: Arial, Helvetica, sans-serif; line-height: normal;\"\u003eGlare testing is useful for simulating situations present in everyday life. Testing is also useful for contact lens evaluations, post surgery (LASIK, PRK) evaluations, and vision diagnosis. Glare problems may not be noticeable in routine eye exams, but may cause problems in everyday life situations. Glare testing can detect signs of diseases, such as cataracts, before conventional testing can. This early detection can lead to earlier diagnosis and treatment.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921479622817,"sku":"2429","price":517.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/220c08548cac211cc7db219bb52f46cf_XL.jpg?v=1776157125"},{"product_id":"diffuser-panel-for-the-2425-etdrs-cabinet","title":"Diffuser Panel (for the 2425 ETDRS® Cabinet)","description":"\u003cp\u003e\u003cstrong\u003e\u003cu\u003eREPLACEMENT\u003c\/u\u003e\u003c\/strong\u003e\u003cu\u003e\u003cstrong\u003e Special Acrylic Diffuser Panel\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/u\u003e\u003c\/p\u003e\n\u003cp\u003eThe Diffuser Panel is required for the operation and proper illumination of our ETDRS® cabinets and is specifically calibrated in conjunction with our 2427 Bulbs (all versions and voltages) for uniform testing. This item should be replaced if there are any scratches or discoloring that can create patient focal points.\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921479655585,"sku":"DiffuserPanel","price":51.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/0548677e6432786dd8df61eb3aaec139_XL.jpg?v=1776157126"},{"product_id":"revised-series-sloan-letter-etdrs","title":"Revised Series Sloan Letter ETDRS®","description":"\u003cp\u003eThis revised eye chart incorporates a slight change in the difficulty score for each of the ten SLOAN letters derived from the best corrected visual acuity examinations of 7,420 eyes during the ETDRS® study.\u003c\/p\u003e\n\u003cp\u003eThe revised arrangement of letters in the 2000 Series ETDRS® chart resulted in the ultimate homogeneity and balance of the visual acuity test.\u003c\/p\u003e\n\u003cp\u003eCan be wall mounted\u003c\/p\u003e\n\u003cp\u003e2000 series revised ETDRS® charts fit in ETDRS® Illuminator Cabinet CAT. NO. 2425. This Illuminator cabinet provides a consistent and uniform light source behind the ETDRS® visual acuity test. A glare source CAT. NO. 2429 may also be used for more intense visual acuity testing using different lighting situations.\u003c\/p\u003e\n\u003cp\u003eDownload Recording Forms for\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2022\/06\/35aff4ac-2121-recording-form.pdf\"\u003e2121\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e–\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2022\/06\/455fa028-2135-cheat.pdf\"\u003e2135\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e–\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2022\/06\/d7e0a08e-2170-recording-form.pdf\"\u003e2170\u003c\/a\u003e\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Chart 1 \/ 4 m \/ 13 ft","offer_id":46434362785953,"sku":"2121","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 1 \/ 3 m \/ 10 ft","offer_id":46434362818721,"sku":"2170","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 1 \/ 2.5 m \/ 8.3 ft","offer_id":46434362851489,"sku":"2141","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 1 \/ 2 m \/ 6.5 ft","offer_id":46434362884257,"sku":"2135","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 2 \/ 4 m \/ 13 ft","offer_id":46449779376289,"sku":"2122","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 2 \/ 3 m \/ 10 ft","offer_id":46449779409057,"sku":"2171","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 2 \/ 2.5 m \/ 8.3 ft","offer_id":46449779441825,"sku":"2142","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 2 \/ 2 m \/ 6.5 ft","offer_id":46449779474593,"sku":"2136","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 3 \/ 4 m \/ 13 ft","offer_id":46449779507361,"sku":"2123","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 3 \/ 3 m \/ 10 ft","offer_id":46449779540129,"sku":"2172","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 3 \/ 2.5 m \/ 8.3 ft","offer_id":46449779572897,"sku":"2143","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 3 \/ 2 m \/ 6.5 ft","offer_id":46449779605665,"sku":"2137","price":69.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/3d3b7d5d68132cc424920deb43e754bb_XL.jpg?v=1776157128"},{"product_id":"large-original-cabinet","title":"ETDRS® Original Illuminator Cabinet with LED Bulbs","description":"\u003cp\u003ePrecision Vision's ETDRS® Illuminator Cabinet has maintained these standardized testing conditions in clinical trials worldwide. These ETDRS® Illuminator Cabinets (and Charts) have been used in thousands of clinical trials, contributing to successful FDA approvals of new drugs and treatments of all disease areas.\u003c\/p\u003e\n\u003cp\u003eThe Large ETDRS® Illuminator Cabinet is used in clinical trials, research, studies, and general clinical applications. This cabinet provides accurate and uniform illumination to ensure reliable vision testing. Precision Vision® ETDRS® Illuminator Cabinets remains the most trusted and recognized device for clinical trials and vision research by the NEI and FDA.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(9, 6, 6);\"\u003e\u003cstrong\u003eCheck out the \"\u003ca href=\"\/blogs\/resources\/precision-vision-etdrs-illuminator-cabinet-history-and-future-outlook-a-guide-for-clinical-trials-and-vision-research\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: rgb(204, 5, 5);\"\u003ePrecision Vision ETDRS® Illuminator Cabinet History and Future Outlook: A Guide for Clinical Trials and Vision Research\u003c\/span\u003e\u003c\/a\u003e\" for more information about the evolution of our illuminator cabinets.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBefore purchasing from a third party, confirm with our team that you are purchasing from an authorized reseller and not a counterfeiter – \u003ca href=\"\/pages\/contact\"\u003eContact us now\u003c\/a\u003e!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCabinet Includes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eETDRS® Cabinet (can be wall-mounted)\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/5-leg-caster-base\"\u003e5 Leg Caster Base\u003c\/a\u003e - \u003cem\u003eSold Separately\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e1 Set of Calibrated LED Bulbs\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eAdditional (Replacement\/Spare) Sets Sold Separately\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eType-B (Domestic\/USA) Power Cord\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eETDRS® CHARTS SOLD SEPARATELY\u003c\/strong\u003e – \u003cspan style=\"color: #0000ff;\"\u003eBCVA Charts (High Contrast) – Low Contrast Charts\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eProduct Performance and Functionality\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eETDRS Cabinet\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFlex Power Performance – Universal Performance from 90-265 Volts\u003c\/li\u003e\n\u003cli\u003eMay be mounted on the \u003ca href=\"\/products\/5-leg-caster-base\"\u003e5 Leg Caster Base\u003c\/a\u003e - \u003cem\u003eSold Separately\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003eStorage: Holds up to 11 charts (10 in back pocket \u0026amp; 1 in front)\u003c\/li\u003e\n\u003cli\u003eMeasurements : 24.75 x 25.75 x 7 inches (L x W x D)\n\u003cul\u003e\n\u003cli\u003e63 x 65.5 x 17.8 cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eUsed for clinical trials, vision research, or general practice\u003c\/li\u003e\n\u003cli\u003eFor Testing Distances: 1 Meter to 4 Meters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eLED ETDRS® Bulbs\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProvide uniform luminance\u003c\/li\u003e\n\u003cli\u003eNo Pre-Burning Required\u003c\/li\u003e\n\u003cli\u003eFlex Power Performance – Universal Performance from 90-265 Volts\u003c\/li\u003e\n\u003cli\u003eLEDs can be used for up to two (2) years without compromising performance, whereas\u003cbr\u003etraditional fluorescent bulbs require annual replacement.\u003c\/li\u003e\n\u003cli\u003eClinical Sites: Please consult your study team (Sponsor, CRO, Certifying Group)\u003cbr\u003eto verify the study-specific bulb replacement schedule.\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003ePrecision Vision® LED ETDRS® Bulbs are Certified \u0026amp; Serialized (2427D-V4)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhat Sets Us Apart From the Rest?\u003cbr\u003e\u003c\/strong\u003eWe recognize your trust in our team to provide the highest quality vision testing equipment, and we want you to know that every individual cabinet goes through a rigorous quality testing process. All bulbs are calibrated explicitly to each version of the cabinet in which they are designated for use. Precision Vision® ETDRS® Illuminator Cabinets are backed by quality, proven by science. We stand behind our craftsmanship, so there is no need to purchase an \u003cem\u003eextended warranty\u003c\/em\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003c!-- \/wp:paragraph --\u003e\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921480081569,"sku":"2425Ev4","price":1550.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/b5bc1b50-large-etdrs-cabinet-2425.jpg?v=1776157128"},{"product_id":"5-leg-caster-base","title":"5 Leg Caster Base","description":"\u003cp style=\"color: #000000; font-family: Arial, Helvetica, sans-serif; line-height: normal;\"\u003eFive plastic caster wheels.\u003c\/p\u003e\n\u003cp style=\"color: #000000; font-family: Arial, Helvetica, sans-serif; line-height: normal;\"\u003eTwo locking wheels.\u003c\/p\u003e\n\u003cp style=\"color: #000000; font-family: Arial, Helvetica, sans-serif; line-height: normal;\"\u003eHeight adjustable from 144cm (45 in.) to 155 cm (61 in.).\u003c\/p\u003e\n\u003cp style=\"color: #000000; font-family: Arial, Helvetica, sans-serif; line-height: normal;\"\u003eFits ETDRS Illuminator Cabinet Cat. No. 2425.\u003c\/p\u003e\n\u003cp style=\"color: #000000; font-family: Arial, Helvetica, sans-serif; line-height: normal;\"\u003eETDRS Illuminator Cabinet base is useful for clinical testing where multiple heights and distances are necessary. The base features two locking wheels to prevent unwanted rolling and movement. Also, the base is designed specifically for the ETDRS illuminator cabinet and provides a stable stand while testing.  The base is featured in two colors, traditional Beige or Cobalt Black to match cabinet color and office decor.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: #ff0000;\"\u003eDownload Best Practices for Installing Power Cord For the 2425LED.\u003c\/span\u003e\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Traditional","offer_id":45921480114337,"sku":"2426","price":364.25,"currency_code":"USD","in_stock":true},{"title":"LED","offer_id":45921480147105,"sku":"2426LED","price":469.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/pv-8__1551367929_71.57.61.181-1.jpg?v=1776157131"},{"product_id":"large-led-illuminator-cabinet","title":"Large LED ETDRS® Illuminator Cabinet","description":"\u003ch5\u003eLuminance Level Models\/Options\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003e2425LED-100: On\/Off at 160 cd\/m2\u003c\/strong\u003e\u003cbr\u003eMost common for use in clinical settings for normal and low vision patients and ETDRS® clinical trials.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2425LED-200: 3 Presets at 3, 85 and 160 cd\/m2\u003c\/strong\u003e\u003cbr\u003eAllows for testing at mesopic luminance and the most common ETDRS®\/clinical setting. The 85 cd\/m2 preset is provided for some protocol requirements and the use of the Trans-Illuminated Pelli-Robson Contrast Sensitivity\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2425LED-300 7 Presets at 3, 10, 40, 85, 160, 320 and 800 cd\/m2\u003c\/strong\u003e\u003cbr\u003eThis configuration allows for testing vision under several different luminance levels with optional charts in high contrast, low contrast and threshold contrast and different test distances.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2425LED-Custom\u003c\/strong\u003e\u003cbr\u003eWe manufacture and calibrate every cabinet in-house are capable of providing 1 to 9 specific presets ranging from 3 to 800 cd\/m2 to support your research or clinical trial requirements. Phone or email to discuss your request and get pricing.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003ca href=\"\/products\/5-leg-caster-base?variant=45921480147105\"\u003e\u003cstrong\u003e5-Leg Caster Base \u003cem\u003e(not included) \u003c\/em\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/products\/5-leg-caster-base?variant=45921480147105\"\u003e\u003cstrong\u003e\u003cem\u003eADD NOW - SKU: 2426LED\u003c\/em\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003eETDRS® Charts \u003cem\u003e(not included) with cabinet. Charts can be purchased in sets or individually: \u003c\/em\u003e\u003c\/strong\u003eOriginal Series, Revised Series, or Other ETDRS® Charts\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5 style=\"text-align: left;\"\u003eWhat Sets Us Apart From the Rest?\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eEach and every individual cabinet is quality tested and \u003cstrong\u003ecalibrated individually\u003c\/strong\u003e prior to receiving our quality assurance of Mission critical attention to detail!\u003c\/li\u003e\n\u003cli\u003ePrecision Vision Illuminator Cabinets are crafted with performance welding and are sturdy enough to last the lifetime of your trial or research!\u003c\/li\u003e\n\u003cli\u003eNo extended warranty is necessary, our cabinet's durability is guaranteed. They arrive on-site ready to test!\u003c\/li\u003e\n\u003cli\u003eClinically Tested, Clinically Proven, and Universally Trusted!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"\/products\/2425led-remote\"\u003e*Remote Not Included and must be purchased separately\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2022\/09\/dd74d80b-2425led-ce-manual-rev3.4_sz-proof1.pdf\"\u003eDownload Best Practices for Installing Power Cord.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCheck out the\u003cspan style=\"color: #ff0000;\"\u003e\u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2025\/03\/0d88c023-precision-vision-cabinet-history-final-final.pdf\" style=\"color: #ff0000;\"\u003e \"Precision Vision ETDRS® Illuminator Cabinet History and Future Outlook: A Guide for Clinical Trials and Vision Research\"\u003c\/a\u003e\u003c\/span\u003e for more information about the evolution of our illuminator cabinets.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"100","offer_id":45921480179873,"sku":"2425LED-100","price":1895.0,"currency_code":"USD","in_stock":true},{"title":"200","offer_id":45921480212641,"sku":"2425LED-200","price":2175.0,"currency_code":"USD","in_stock":true},{"title":"300","offer_id":45921480245409,"sku":"2425LED-300","price":2345.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/NEW-LED.jpg?v=1776157131"},{"product_id":"large-mesopic-filter-for-2425-etdrs-illuminator-cabinet","title":"Large mesopic Filter for 2425 ETDRS® Illuminator Cabinet","description":"\u003cp style=\"color: #000000; font-family: Arial, Helvetica, sans-serif; line-height: normal;\"\u003eDesigned for use in the ETDRS® Illuminator Cabinet Cat.No. 2425.\u003c\/p\u003e\n\u003cp style=\"color: #000000; font-family: Arial, Helvetica, sans-serif; line-height: normal;\"\u003eFilter measures 62 x 65 cm (24.5 x 25.5 in.).\u003c\/p\u003e\n\u003cp style=\"color: #000000; font-family: Arial, Helvetica, sans-serif; line-height: normal;\"\u003eThin and light design.\u003c\/p\u003e\n\u003cp style=\"color: #000000; font-family: Arial, Helvetica, sans-serif; line-height: normal;\"\u003eTesting for multiple vision problems while performing routine exams is practical. Acuity, Low Contrast and Low Vision testing are important parts of normal vision and should be checked and recorded often. Placed in front of a vision test chart, this filter reduces normal cabinet light level down to 3 cd\/m2 to challenge the patient's vision at low light conditions. It is an easy and quick way to test low vision and low lighting problems and does not require moving to different rooms, calculating, or reorganizing the office. Mesopic filter is light, easy to use, and creates an accurate low vision test.\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921480442017,"sku":"2424","price":79.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/Mesopic-IMG_2140.jpg?v=1776157130"},{"product_id":"4-meter-vision-test-with-pv-numbers-optotypes","title":"4 Meter Vision Test with PV Numbers Optotypes","description":"\u003cp\u003eTwo smaller groups 5M to 1.6M for repetitive testing (20\/25, 6\/7.5 to 20\/8, 6\/2.4 equiv.).\u003c\/p\u003e\n\u003cp\u003eCan be wall-mounted.\u003c\/p\u003e\n\u003cp\u003ePV numbers are an alternative vision test to Sloan, Snellen, Patti Pics, Landolt C, and Tumbling E tests. PV Numbers are designed for vision testing in several different languages and for several types of patients. The PV Number test can be used for languages across the globe. Also, PV Numbers are useful for mute patients and for children who may be preliterate but may know their numbers.\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921481228449,"sku":"2713","price":23.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/7ab716354432ee12f19b58c60471093b_XL-scaled-1.jpg?v=1776157138"},{"product_id":"near-point-acuity-illuminated-flip-chart","title":"Near Point Acuity Illuminated Flip Chart","description":"\u003cp\u003eLogarithmic Progression using ETDRS Chart 1 and ETDRS Chart 2.\u003c\/p\u003e\n\u003cp\u003eSize increments = 0.1 LOG Units.\u003c\/p\u003e\n\u003cp\u003eFeatures notations for Letter Size, Decimal, Meters, Feet, and Diopters of Add.\u003c\/p\u003e\n\u003cp\u003eMask included for concealing bottom portion of the chart while using the top for testing.\u003c\/p\u003e\n\u003cp\u003eNear vision test uses the same format as ETDRS 2000 series charts. ETDRS format is calibrated for reliable, repetitive testing using equal difficulty and geometric progression. Vision test uses Sloan optotypes for equal difficulty from optotype to optotype and from line to line creating a uniform level of difficulty. This test features two different ETDRS style permutations for repetitive non memorized testing for both eyes.\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921481359521,"sku":"2199","price":34.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/63955aa9869cf7707ada1662dbfb31e2_XL-scaled-1.jpg?v=1776157138"},{"product_id":"patti-pics-13-line-pediatric-vision-chart","title":"Patti Pics 13 Line Pediatric Vision Chart","description":"\u003cp\u003eProportional spacing.\u003c\/p\u003e\n\u003cp\u003eTwo smaller groups 3.8M to 1.2M for repetitive testing (20\/25, 6\/7.5 to 20\/8, 6\/2.4 equiv.).\u003c\/p\u003e\n\u003cp\u003eCan be wall-mounted.\u003c\/p\u003e\n\u003cp\u003eAmong the many picture-like symbols for testing pediatrics, the Patti Pics are the only ones that have been designed explicitly to equal Sloan letters as used in ETDRS charts. We have now developed a fifth symbol for the Patti Pics test which, like the other vision symbols all blur equally at threshold. This fifth symbol improves confidence in test results by reducing the element of guessing correct answers from 25% to 20% per symbol.\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Original Version","offer_id":45921481916577,"sku":"2524","price":23.0,"currency_code":"USD","in_stock":true},{"title":"Scrambled Version A","offer_id":45921481949345,"sku":"2524A","price":23.0,"currency_code":"USD","in_stock":true},{"title":"Scrambled Version B","offer_id":45921481982113,"sku":"2524B","price":19.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/0847d5211daa2cfcfde28d825aa07d5d_XL-scaled-1.jpg?v=1776157141"},{"product_id":"patti-pics-13-lines-translucent-chart","title":"Patti pics 13 lines Translucent Chart","description":"\u003cp\u003eProportional spacing.\u003c\/p\u003e\n\u003cp\u003eCan be wall-mounted.\u003c\/p\u003e\n\u003cp\u003eMade of high impact polystyrene.\u003c\/p\u003e\n\u003cp\u003eDesigned with and for U.S. school nurses.\u003c\/p\u003e\n\u003cp\u003ePatti Pics are among the many picture-like symbols for testing children, however Patti Pics are the only pediatric eye chart that has been designed explicitly to equal Sloan letters as used in ETDRS charts. Patti Pics are recognizable to children and help keep their attention during testing.\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921482080417,"sku":"2504US","price":23.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/fe4bbe81600a40063594e597e00eb05b_XL-scaled-1.jpg?v=1776157138"},{"product_id":"landolt-c-series-etdrs","title":"Landolt C Series ETDRS®","description":"\u003cp\u003eCan be wall-mounted.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLandolt C charts are considered the gold standard of alternative eye charts since 1988. The chart was developed as an alternative to Snellen chart \u003c\/span\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eoptotype\u003c\/span\u003e\u003cspan\u003es, which were not equally difficult. Each chart features only one carefully calibrated \u003c\/span\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eoptotype \u003c\/span\u003e\u003cspan\u003eplaced in different positions (up, down, left, right, and 45 degree positions). The C used in the chart creates an equality throughout testing, giving the patient optimal opportunity. Patients must gesture or say which direction the C is facing, making testing simple and accurate.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003eDownload Recording Forms for :\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2022\/06\/ee1cc384-2208_recording_form.pdf\"\u003e2208\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e–\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2022\/06\/ef5c05e4-2210-recording-form.pdf\"\u003e2210\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/products\/landolt-c-series-etdrs-chart-1-scrambled\/\"\u003eLooking For The Scrambled Version?\u003c\/a\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Original Version \/ 2 m \/ 6.5 ft","offer_id":45921482145953,"sku":"2235","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Original Version \/ 2.5 m \/ 8.3 ft","offer_id":45921482178721,"sku":"2208","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Original Version \/ 3 m \/ 10 ft","offer_id":45921482211489,"sku":"2205","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Original Version \/ 4 m \/ 13 ft","offer_id":45921482244257,"sku":"2210","price":69.75,"currency_code":"USD","in_stock":true},{"title":"8 Directions \/ 4 m \/ 13 ft","offer_id":45921482277025,"sku":"2214","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 2 \/ 2 m \/ 6.5 ft","offer_id":46434366816417,"sku":"2235A","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 2 \/ 2.5 m \/ 8.3 ft","offer_id":46434366849185,"sku":"2208A","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 2 \/ 3 m \/ 10 ft","offer_id":46434366881953,"sku":"2205A","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 2 \/ 4 m \/ 13 ft","offer_id":46434366914721,"sku":"2210A","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 3 \/ 2 m \/ 6.5 ft","offer_id":46434366947489,"sku":"2235B","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 3 \/ 2.5 m \/ 8.3 ft","offer_id":46434366980257,"sku":"2208B","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 3 \/ 3 m \/ 10 ft","offer_id":46434367013025,"sku":"2205B","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 3 \/ 4 m \/ 13 ft","offer_id":46434367045793,"sku":"2210B","price":69.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/65672688a4f4c8a57ea38e20056bdce1_XL.jpg?v=1776157147"},{"product_id":"pv-numbers-25-michelson-contrast-chart-for-4-meter-testing","title":"PV Numbers 25% Michelson Contrast Chart for 4 Meter Testing","description":"\u003cp\u003eTwo groups for repetitive testing.\u003c\/p\u003e\n\u003cp\u003eCAT. NO. 2425 ETDRS Illuminator Cabinet is necessary with this chart.\u003c\/p\u003e\n\u003cp\u003eStudies and general practice has shown that regular contrast sensitivity testing can lead to the detection of early signs of many diseases. Some diseases include Glaucoma, Glare Problems, Parkinson's, and Cataracts. Also, by testing contrast vision during routine eye exams, more accurate and detailed records can be kept. Contrast vision changes throughout life and is different in each patient so accurate individual records are key to early detection of problems.\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921482309793,"sku":"2728-opt","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/7af0193b8351bd1eb04c09dfe5731fa3_XL.jpg?v=1776157139"},{"product_id":"3-meter-etdrs-folding-chart-with-islands-with-sloan-hotv-or-pv-numbers","title":"3 Meter ETDRS® Folding Chart with Islands with Sloan, HOTV or PV Numbers","description":"\u003cp bis_size='{\"x\":12,\"y\":9,\"w\":560,\"h\":39,\"abs_x\":428,\"abs_y\":271}'\u003eThis ETDRS® Folding Chart is meant for 3 Meter Testing and can be hand-held or wall-mounted. It folds in half making it very convenient to transport.\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":64,\"w\":560,\"h\":58,\"abs_x\":428,\"abs_y\":326}'\u003eThe two islands on either side reduce memorization when testing OD, OS, and OU (Oculus Dexter, Oculus Sinister and Oculus Uterque). (Option available without islands - see dropdown menu)\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":139,\"w\":560,\"h\":58,\"abs_x\":428,\"abs_y\":401}'\u003eConstructed with the same precision, accuracy, and methodology as traditional ETDRS® charts. Lines are of equal difficulty. Geometric progression in letter size from line to line. Letter size is only variable.\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":214,\"w\":560,\"h\":19,\"abs_x\":428,\"abs_y\":476}'\u003eClick additional information to the above for more specifications.\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":250,\"w\":560,\"h\":19,\"abs_x\":428,\"abs_y\":512}'\u003e\u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2021\/02\/0cffc0ef-etdrs-reprint.pdf\" bis_size='{\"x\":12,\"y\":250,\"w\":146,\"h\":18,\"abs_x\":428,\"abs_y\":512}'\u003e\u003cspan class=\"has-inline-color has-vivid-red-color\" bis_size='{\"x\":12,\"y\":250,\"w\":146,\"h\":18,\"abs_x\":428,\"abs_y\":512}'\u003eRead More On ETDRS®\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Sloan","offer_id":45921482899617,"sku":"2104_","price":60.75,"currency_code":"USD","in_stock":true},{"title":"PV Numbers","offer_id":45921482932385,"sku":"2711","price":60.75,"currency_code":"USD","in_stock":true},{"title":"HOTV","offer_id":45921482965153,"sku":"2014","price":68.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/7b01a461-2014_withhole-scaled-1.jpg?v=1776157144"},{"product_id":"sloan-distance-high-contrast-acuity-folding-chart","title":"Sloan Distance High Contrast Acuity Folding Chart","description":"\u003cp\u003eTwo smaller groups 7.5M to 1.5M for repetitive testing (20\/50, 6\/15 to 20\/10, 6\/3 equiv.).\u003c\/p\u003e\n\u003cp\u003eCan be hand-held or there is a hole in the top to allow for wall mounting.\u003c\/p\u003e\n\u003cp\u003eThis folding chart is a combination of many highly calibrated and accurate vision tests. It incorporates traditional Sloan optotypes for testing. This helps to establish a constant and equal acuity object from beginning to end. Also, this test uses a ETDRS format to help maintain the idea of equality during testing. Also, this folding acuity chart features two smaller groups of optotypes for repetitive non memorized testing. This acuity test provides accurate and reliable results.\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Original Version","offer_id":45921483161761,"sku":"2104__","price":60.75,"currency_code":"USD","in_stock":true},{"title":"Scrambled Version A","offer_id":45921483194529,"sku":"2104A__","price":61.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/0e17febd522cd9389b04ce5c00f25aec_XL-scaled-1.jpg?v=1776157145"},{"product_id":"sloan-logarithmic-visual-acuity-charts-1-and-2etdrs-2000-series","title":"SLOAN Logarithmic Visual Acuity Charts 1 and 2ETDRS® 2000 Series","description":"\u003cp\u003eAcuity range for two groups 10M to 0.5M (20\/200, 6\/60 to 20\/10, 6\/3 equiv.).\u003c\/p\u003e\n\u003cp\u003eCan be wall-mounted.\u003c\/p\u003e\n\u003cp\u003eReduced version of charts 1 and 2 of the 2000 series revised ETDRS charts.\u003c\/p\u003e\n\u003cp\u003eThis chart features a horizontal design and includes two different ETDRS format charts. The use of two separate charts for testing is helpful for repetitive testing without memorization. Each chart features an ETDRS format with calibrated optotypes and lines for equal testing.\u003c\/p\u003e","brand":"ETDRS®, Precision Vision","offers":[{"title":"Default Title","offer_id":45921483325601,"sku":"2195","price":23.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/937f929d420ab20a5c9d96a1ab9e2021_XL.jpg?v=1776157144"},{"product_id":"sloan-etdrs-near-intermediate-vision","title":"Sloan ETDRS® Near \u0026 Intermediate Vision","description":"\u003cp\u003eSide One features ETDRS® Format Chart 1 at 40cm testing distance.\u003c\/p\u003e\n\u003cp\u003eSide Two features ETDRS® Format Chart 2 at 60cm testing distance.\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921484406945,"sku":"2108","price":37.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/8240a1907e29481b04619a0df33df9ab_XL-scaled-1.jpg?v=1776157155"},{"product_id":"near-vision-card","title":"Near Vision Card","description":"\u003cp\u003eThe modified charts for “European-wide use” contain (Sloan) letters used in all European alphabets (Latin, Greek, Cyrillic), offering the advantage of containing letters recognizable by a wider population basis, such as European citizens, as well as subjects from countries using the Cyrillic alphabet At the same time, they remain faithful to the format thus ensuring adherence to the gold standards of visual acuity measurement.\u003c\/p\u003e\n\u003cdiv\u003eThe modified charts for “European-wide use” facilitate patient data exchange between doctors and clinics, securing validity of visual acuity screening among all EU population.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003eMore specifically, the Sloan letters C, D, N, R, S, V, and Z in the revised ETDRS charts were substituted with E, P, X, B, T, M, and A, respectively. The new letters were constructed to the specifications of Sloan letters.\u003c\/div\u003e\n\u003cp\u003eThese charts are for measuring both near (33cm) and intermediate (66cm) visual acuity.  Mixed contrast with high contrast on side 1 and side 2 containing 20% Weber (10% Michelson) contrast levels.\u003c\/p\u003e\n\u003cp\u003eAttached cord assures accurate testing distances.  Chart measures 7\" x 9\".\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"\/wp-content\/uploads\/2015\/05\/a-modified-etdrs-visual-acuity-chart-for-european-wide-use.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eLearn more about the study\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Version 2","offer_id":45921485258913,"sku":"2841","price":65.0,"currency_code":"USD","in_stock":true},{"title":"Version 1","offer_id":45921485291681,"sku":"2831","price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/b5b56b2ae93d3dc958cf0c21c9383b18_XL-scaled-1.jpg?v=1776157159"},{"product_id":"sloan-double-sided-low-contrast-vision-card","title":"SLOAN Vision Card","description":"\u003cp\u003eFront side 2.5% contrast.\u003c\/p\u003e\n\u003cp\u003eBack side 10% contrast.\u003c\/p\u003e\n\u003cp\u003eNear Vision test uses both 2.5% and 10% contrast to test for contrast sensitivity. Test uses traditional Sloan optotypes in an ETDRS format. This helps in accurate vision testing and reliable results. Test is for use at 40 cm for near vision testing includes an accurate length cord to maintain viewing distances.\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921485652129,"sku":"2117","price":96.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/16e33b8fd7ad7ca58b03c6bbca1f0b81_XL.jpg?v=1776157156"},{"product_id":"rabin-contrast-sensitivity-test-2","title":"Rabin Contrast Sensitivity Test","description":"\u003cp\u003eDetects subtle effects of defocus, low luminance and glare.\u003c\/p\u003e\n\u003cp\u003eLog CS increases 0.25 steps per row (0.05 Log CS per Letter).\u003c\/p\u003e\n\u003cp\u003eMust be used with Cat. No. 2425 Large ETDRS Illuminator Cabinet.\u003c\/p\u003e\n\u003cp\u003eRabin Contrast Sensitivity Test uses several different levels of contrast to find the patient's true sensitivity. The line progression helps to detect early signs such as defocus, glare and low luminance problems. Because of the precision of each contrast level, the large Illuminator Cabinet (2425) must be used. Without the use of the cabinet, the contrast levels will not be accurate.\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921486536865,"sku":"2127","price":230.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/b190b9bcae39ee6b68c160e3e6f45456_XL.jpg?v=1776157156"},{"product_id":"tumbling-e-4-meter-etdrs-folding-chart","title":"Tumbling \"E\" 4 Meter ETDRS® Folding Chart","description":"\u003cp\u003eThis Tumbling \"E\" ETDRS® Folding Chart is meant for 4 Meter Testing and can be hand-held or wall-mounted. It folds in half making it very convenient to transport.\u003c\/p\u003e\n\u003cp\u003eThere are three iterations (Standard, Scrambled A, and Scrambled B) available which may be used to reduce memorization when repeatedly testing and\/or to reduce memorization when testing OD, OS, and OU (Oculus Dexter, Oculus Sinister and Oculus Uterque).\u003c\/p\u003e\n\u003cp\u003eDeveloped in 1976, Tumbling E charts were intended for testing illiterate patients and those not familiar with the Roman Alphabet. The Tumbling E vision tests are considered highly useful for testing foveal vision and has a high visual acuity threshold. The construction of the letter E is similar and gives the effect of gratings. The Tumbling E chart is also useful for detecting signs of Astigmatism.\u003c\/p\u003e\n\u003cp\u003e\u003c!-- wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp\u003eConstructed with the same precision, accuracy, and methodology as traditional ETDRS® charts. Lines are of equal difficulty. Geometric progression in letter size from line to line. Letter size is only variable.\u003c\/p\u003e\n\u003cp\u003e\u003c!-- \/wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c!-- wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp\u003eClick additional information to the above for more specifications.\u003c\/p\u003e\n\u003cp\u003e\u003c!-- \/wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c!-- wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2021\/02\/0cffc0ef-etdrs-reprint.pdf\"\u003e\u003cmark class=\"has-inline-color has-vivid-red-color\" style=\"background-color: rgba(0, 0, 0, 0);\"\u003eRead More On ETDRS®\u003c\/mark\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c!-- \/wp:paragraph --\u003e\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Original Version","offer_id":45921488175265,"sku":"2305Folding","price":84.0,"currency_code":"USD","in_stock":true},{"title":"Scrambled Version A","offer_id":45921488208033,"sku":"2305FoldingA","price":84.0,"currency_code":"USD","in_stock":true},{"title":"Scrambled Version B","offer_id":45921488240801,"sku":"2305FoldingB","price":84.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/90c8a860751b252e58c26f97e05856c4_XL.jpg?v=1776157162"},{"product_id":"pvvat-system-with-pc-monitor","title":"PVVAT System with PC Monitor","description":"\u003cp class=\"x-text-content-text-primary\"\u003e\u003cstrong\u003eDownload a risk-free DEMO today.\u003c\/strong\u003e (No Credit Card Required.)\u003c\/p\u003e\n\u003cdiv class=\"x-anchor-content\"\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/precision-vision.com\/pvvat-demo\/\"\u003eClick Here to Download a Demo (Windows or Mac)\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003e\nProduct description:\u003c\/strong\u003e\u003cbr\u003e\nPVVAT is a robust software that will surely become your new favorite tool for acuity testing. PVVAT is jam packed with 9 different optotypes that can be displayed in 7 different arrangements with over 20 additional charts and options. It is sure to fit you and your patient’s needs in one perfectly bundled software.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTest List:\u003cbr\u003e\n\u003c\/strong\u003e - Acuity Charts\u003cbr\u003e\n- Low Contrast Charts\u003cbr\u003e\n- Worth dot\u003cbr\u003e\n- Contrast sensitivity\u003cbr\u003e\n- Astigmatism\u003cbr\u003e\n- Circular astigmatism\u003cbr\u003e\n- Concentric circles\u003cbr\u003e\n- Red green balance\u003cbr\u003e\n- Maddox rod\u003cbr\u003e\n- Phoria test\u003cbr\u003e\n- Vernier test\u003cbr\u003e\n- Amsler grid\u003cbr\u003e\n- Disparity chart\u003cbr\u003e\n- Fixation points\u003cbr\u003e\n- Solid white dot\u003cbr\u003e\n- Changing color dot\u003cbr\u003e\n- Images\u003cbr\u003e\n- Videos\u003cbr\u003e\n- ATS-HOTV \/ E-ETDRS\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptotype choices:\u003cbr\u003e\n\u003c\/strong\u003e - Patti Pics® Pediatric Symbols\u003cbr\u003e\n- Sloan Letters\u003cbr\u003e\n- Bailey-Lovie\u003cbr\u003e\n- Snellen\u003cbr\u003e\n- HOTV\u003cbr\u003e\n- Tumbling E\u003cbr\u003e\n- PV Numbers®\u003cbr\u003e\n- Landolt C\u003cbr\u003e\n- Allen Pictures\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptotype Presentation:\u003c\/strong\u003e\u003cbr\u003e\n- Single character mode (crowding bars on\/off)\u003cbr\u003e\n- Single line mode (MassVAT® frame on\/off)\u003cbr\u003e\n- Multi line ETDRS format\u003cbr\u003e\n- Multi line all same size\u003cbr\u003e\n- Single column mode (speed acuity testing)\u003cbr\u003e\n- MassVAT\u003cbr\u003e\n- Custom Crowding Bars\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921488306337,"sku":"6000-PC-KIT","price":2475.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/systemAndMon.png?v=1776157160"},{"product_id":"sloan-distance-high-contrast-fold-eye-chart","title":"SLOAN Distance High Contrast Fold Eye Chart","description":"\u003cp\u003eTwo smaller groups 7.5M to 1.5M for repetitive testing (20\/50, 6\/15 to 20\/10, 6\/3 equiv.).\u003c\/p\u003e\n\u003cp\u003eCan be hand-held or there is a hole in the top to allow for wall mounting.\u003c\/p\u003e\n\u003cp\u003eThis folding chart is a combination of many highly calibrated and accurate vision tests. It incorporates traditional Sloan optotypes for testing. This helps to establish a constant and equal acuity object from beginning to end. Also, this test uses a ETDRS® format to help maintain the idea of equality during testing. Also, this folding acuity chart features two smaller groups of optotypes for repetitive non memorized testing. This acuity test provides accurate and reliable results.\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921488371873,"sku":"2104US","price":60.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/dc7259495409db483f53803df58f17e8_XL-scaled-1.jpg?v=1776157160"},{"product_id":"sloan-low-contrast-for-2425-with-islands","title":"SLOAN Chart","description":"\u003cp\u003e\u003c!-- wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp\u003eContrast Sensitivity plays an intricate part in everyday life. Testing contrast sensitivity helps to establish a record of what is normal for each patient, since everyone’s contrast sensitivity is unique. After establishing this accurate record for the patient, pinpointing abnormalities will be easier and can lead to quicker detection of vision problems. Abnormal contrast sensitivity results can help detect early signs of diseases such as Parkinson’s, Glaucoma, Cataracts and Glare problems, among many others. \u003cbr\u003eSloan low contrast vision test features equivalents on each side of the chart. These equivalents include Meters, Feet, LogMar, and Decimal. This list helps in easy translation and conversion of equivalents. Coupled with Sloan letters, true contrast levels and ETDRS style format, this contrast sensitivity test is accurate and reliable.\u003c\/p\u003e\n\u003cp\u003e\u003c!-- \/wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c!-- wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp\u003eETDRS Illuminator Cabinets are necessary with these translucent low contrast charts.\u003c\/p\u003e\n\u003cp\u003e\u003c!-- \/wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c!-- wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp\u003eLow lighting often causes problems with patients that suffer from contrast sensitivity loss. In dimmed or low lighting, patients may not be able to make out furniture, read, or walk without running into items. Also, because patients with low contrast sensitivity may not be able to see other cars or pedestrians, driving at night would be very difficult. These symptoms point to an underlying problem with a patient’s vision and can be early signs of many types of diseases.\u003c\/p\u003e\n\u003cp\u003e\u003c!-- \/wp:paragraph --\u003e\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921488404641,"sku":"2181","price":98.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/4f411c7dd400d8cc3ebd00031ff0e07d_XL.jpg?v=1776157160"},{"product_id":"15-line-sloan-4m-13ft","title":"Sloan 4 Meter ETDRS® Folding Chart with Islands","description":"\u003cp bis_size='{\"x\":12,\"y\":16,\"w\":576,\"h\":0,\"abs_x\":428,\"abs_y\":322}'\u003e\u003c!-- wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":16,\"w\":576,\"h\":39,\"abs_x\":428,\"abs_y\":322}'\u003eThis Sloan ETDRS® Folding Chart is meant for 4 Meter Testing and can be hand-held or wall-mounted. It folds in half making it very convenient to transport.\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":71,\"w\":576,\"h\":0,\"abs_x\":428,\"abs_y\":377}'\u003e\u003c!-- \/wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":71,\"w\":576,\"h\":0,\"abs_x\":428,\"abs_y\":377}'\u003e\u003c!-- wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":71,\"w\":576,\"h\":58,\"abs_x\":428,\"abs_y\":377}'\u003eThe center segment of ETDRS® Format Sloan Optotypes matches the optotype sequence of the \u003ca href=\"\/products\/revised-series-sloan-letter-etdrs-chart-1\/\" rel=\"noreferrer noopener\" bis_size='{\"x\":35,\"y\":90,\"w\":225,\"h\":18,\"abs_x\":451,\"abs_y\":396}' target=\"_blank\"\u003eETDRS® 2000 Revised Series Chart 1\u003c\/a\u003e. The two islands on either side reduce memorization when testing OD, OS, and OU (Oculus Dexter, Oculus Sinister and Oculus Uterque).\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":146,\"w\":576,\"h\":0,\"abs_x\":428,\"abs_y\":452}'\u003e\u003c!-- \/wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":146,\"w\":576,\"h\":0,\"abs_x\":428,\"abs_y\":452}'\u003e\u003c!-- wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":146,\"w\":576,\"h\":58,\"abs_x\":428,\"abs_y\":452}'\u003eConstructed with the same precision, accuracy, and methodology as traditional ETDRS® charts. Lines are of equal difficulty. Geometric progression in letter size from line to line. Letter size is only variable.\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":220,\"w\":576,\"h\":0,\"abs_x\":428,\"abs_y\":526}'\u003e\u003c!-- \/wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":220,\"w\":576,\"h\":0,\"abs_x\":428,\"abs_y\":526}'\u003e\u003c!-- wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":220,\"w\":576,\"h\":19,\"abs_x\":428,\"abs_y\":526}'\u003eClick additional information to the above for more specifications.\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":256,\"w\":576,\"h\":0,\"abs_x\":428,\"abs_y\":562}'\u003e\u003c!-- \/wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":256,\"w\":576,\"h\":0,\"abs_x\":428,\"abs_y\":562}'\u003e\u003c!-- wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":256,\"w\":576,\"h\":19,\"abs_x\":428,\"abs_y\":562}'\u003e\u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2021\/02\/0cffc0ef-etdrs-reprint.pdf\" bis_size='{\"x\":12,\"y\":256,\"w\":146,\"h\":18,\"abs_x\":428,\"abs_y\":562}'\u003e\u003cspan class=\"has-inline-color has-vivid-red-color\" bis_size='{\"x\":12,\"y\":256,\"w\":146,\"h\":18,\"abs_x\":428,\"abs_y\":562}'\u003eRead More On ETDRS®\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":292,\"w\":576,\"h\":0,\"abs_x\":428,\"abs_y\":598}'\u003e\u003c!-- \/wp:paragraph --\u003e\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921488568481,"sku":"2114","price":83.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/e53c2c9f4d6761de9122d72eac64a0cc_XL.jpg?v=1776157160"},{"product_id":"landolt-c-w-interaction-bars-50-4-meters-13ft","title":"8 Directional Landolt “C” testing at 4 Meters (13ft)","description":"\u003cp\u003e\u003c!-- wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp\u003eLandolt C charts are considered the gold standard of alternative eye charts since 1988. For testing at 4 Meters (13ft). Can be wall-mounted or utilized within the ETDRS Illuminator Cabinets. The chart was developed as an alternative to Snellen chart optotypes, which were not equally difficult. Each chart features only one carefully calibrated optotype placed in different positions (up, down, left, right, and 45 degree positions). The C used in the chart creates an equality throughout testing, giving the patient optimal opportunity. Patients must gesture or say which direction the C is facing, making testing simple and accurate. \u003c\/p\u003e\n\u003cp\u003e\u003c!-- \/wp:paragraph --\u003e\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921488601249,"sku":"2204","price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/62c587a3-2204.png?v=1776157160"},{"product_id":"pvvat-system-only","title":"PVVAT Software (Computer Not Included)","description":"\u003cp class=\"x-text-content-text-primary\"\u003e\u003cstrong\u003eDownload a risk-free DEMO today.\u003c\/strong\u003e (No Credit Card Required.)\u003c\/p\u003e\n\u003cdiv class=\"x-anchor-content\"\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/precision-vision.com\/pvvat-demo\/\"\u003eClick Here to Download a Demo (Windows or Mac)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Description\u003cbr\u003e\n\u003c\/strong\u003ePVVAT is a robust software that will surely become your new favorite tool for acuity testing. PVVAT is jam-packed with 9 different optotypes that can be displayed in 7 different arrangements with over 20 additional charts and options. It is sure to fit your and your patient’s needs in one perfectly bundled software.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTest List:\u003cbr\u003e\n\u003c\/strong\u003e- Acuity Charts\u003cbr\u003e\n- Low Contrast Charts\u003cbr\u003e\n- Worth dot\u003cbr\u003e\n- Contrast sensitivity\u003cbr\u003e\n- Astigmatism\u003cbr\u003e\n- Circular astigmatism\u003cbr\u003e\n- Concentric circles\u003cbr\u003e\n- Red-Green balance\u003cbr\u003e\n- Maddox rod\u003cbr\u003e\n- Phoria test\u003cbr\u003e\n- Vernier test\u003cbr\u003e\n- Amsler grid\u003cbr\u003e\n- Disparity chart\u003cbr\u003e\n- Fixation points\u003cbr\u003e\n- Solid white dot\u003cbr\u003e\n- Changing color dot\u003cbr\u003e\n- Images\u003cbr\u003e\n- Videos\u003cbr\u003e\n- ATS-HOTV \/ E-ETDRS\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptotype choices:\u003cbr\u003e\n\u003c\/strong\u003e - Patti Pics® Pediatric Symbols\u003cbr\u003e\n- Sloan Letters\u003cbr\u003e\n- Bailey-Lovie\u003cbr\u003e\n- Snellen\u003cbr\u003e\n- HOTV\u003cbr\u003e\n- Tumbling E\u003cbr\u003e\n- PV Numbers®\u003cbr\u003e\n- Landolt C\u003cbr\u003e\n- Allen Pictures\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptotype Presentation:\u003c\/strong\u003e\u003cbr\u003e\n- Single character mode (crowding bars on\/off)\u003cbr\u003e\n- Single line mode (MassVAT® frame on\/off)\u003cbr\u003e\n- Multi-line ETDRS format\u003cbr\u003e\n- Multi line (all the same size)\u003cbr\u003e\n- Single-column mode (speed acuity testing)\u003cbr\u003e\n- MassVAT\u003cbr\u003e\n- Custom Crowding Bars\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWondering how this all works?\u003c\/strong\u003e\u003cbr\u003e\nYou download the software onto your hardware after reviewing that your existing equipment will work with the System Compatibility Chart*. Precision Vision will remotely activate your license once the sale has been processed, and we ship you all of your peripheral equipment, which includes the remote, receiver, and pediatric response keys (HOTV \u0026amp; Patti Pics) in addition to our most popular Sloan Near Vision Card (SKU: 2106). Precision Vision’s commitment to exceptional service does not end there! We are available as a resource for setup and additional support via email at \u003ca href=\"mailto:Sales@Precision-Vision.com\" target=\"blank\" rel=\"noopener noreferrer\"\u003e\u003cstrong\u003eSales@Precision-Vision.com\u003c\/strong\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSystem Compatibility\u003cbr\u003e\n\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in;\"\u003e\u003cspan class=\"brwrap\"\u003eWindows:\u003c\/span\u003e\u003cbr\u003e\n\u003cspan class=\"brwrap\"\u003e– Windows 7\u003c\/span\u003e\u003cbr\u003e\n\u003cspan class=\"brwrap\"\u003e– Windows 8\u003c\/span\u003e\u003cbr\u003e\n\u003cspan class=\"brwrap\"\u003e– Windows 10\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 0in;\"\u003e\u003cspan class=\"brwrap\"\u003e– Windows 11\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0in;\"\u003e\u003cspan class=\"brwrap\"\u003eMac:\u003c\/span\u003e\u003cbr\u003e\n\u003cspan class=\"brwrap\"\u003e– OS X 10.10: Yosemite\u003c\/span\u003e\u003cbr\u003e\n\u003cspan class=\"brwrap\"\u003e– OS X 10.11: El Capitan\u003c\/span\u003e\u003cbr\u003e\n\u003cspan class=\"brwrap\"\u003e– macOS 10.12: Sierra\u003c\/span\u003e\u003cbr\u003e\n\u003cspan class=\"brwrap\"\u003e– macOS 10.13: High Sierra\u003c\/span\u003e\u003cbr\u003e\n\u003cspan class=\"brwrap\"\u003e– macOS 10.14: Mojave\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 0in;\"\u003e\u003cspan class=\"brwrap\"\u003e– macOS 10.15: Sequoia\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Windows","offer_id":45921488797857,"sku":"PVVAT-System-Windows","price":1750.0,"currency_code":"USD","in_stock":true},{"title":"MacOS","offer_id":45921488830625,"sku":"PVVAT-System-MacOS","price":1750.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/PVVAT-group.png?v=1776157162"},{"product_id":"mesopic-glasses-3cdm2","title":"Mesopic Glasses 3cdm²","description":"\u003cp\u003e\u003c!-- wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp\u003eMesopic Filter Glasses 4% Grey Produces 3 cd\/m2 when utilized with the Precision Vision ETDRS Illuminator Cabinet, at the standard light level of 160-180 cd\/m², when mesopic (3 cd\/m²) testing conditions are desired.\u003c\/p\u003e\n\u003cp\u003e\u003c!-- \/wp:paragraph --\u003e\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921488863393,"sku":"2438","price":55.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/2438-Mesopic-Glasses.jpg?v=1776157161"},{"product_id":"clinical-trial-frame","title":"Clinical Trial Frame","description":"\u003cp\u003eThe Universal Trial Frame is lightweight and fully adjustable. Constructed in plastic and metal with leaf spring-loaded temples, this frame accommodates three pairs of 38mm trial lenses in each cell and two in the rear cell. Our Universal Trial Frame features free rocking saddle bridge and independent mono PD adjustment. Right and Left PD adjust from 48-80mm. Bridge height and projection adjust with rack and pinion. Temples adjust for length and angle.\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Clinical","offer_id":45921489092769,"sku":"7025_1","price":281.75,"currency_code":"USD","in_stock":true},{"title":"Universal","offer_id":45921489125537,"sku":"7035_1","price":225.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/trial-frame-closed.jpg?v=1776157169"},{"product_id":"lux-meter","title":"Calibrated Dual-Range Light Meter (Lux and Foot-Candles)","description":"\u003ch4 data-end=\"112\" data-start=\"44\" data-section-id=\"196h1e4\"\u003eCalibrated Light Meter - An Exam Lane Essential for BCVA Testing\u003c\/h4\u003e\n\u003cp data-end=\"483\" data-start=\"114\"\u003e\u003cstrong data-end=\"153\" data-start=\"114\"\u003eBest‑Corrected Visual Acuity (\u003ca href=\"\/products\/etdrs-clinical-trial-kit\"\u003eBCVA\u003c\/a\u003e)\u003c\/strong\u003e using ETDRS® charts remains the \u003cstrong data-end=\"225\" data-start=\"186\"\u003eFDA‑endorsed gold‑standard endpoint\u003c\/strong\u003e in ophthalmic clinical trials, as reaffirmed during the NEI‑FDA Ophthalmic Clinical Trial Design consensus and subsequent regulatory guidance. \u003cspan class=\"relative -mx-px my-\u0026lt;-0.2rem\u0026gt; rounded px-px py-\u0026lt;0.2rem\u0026gt; transition-colors duration-100 ease-in-out\"\u003eThe National Eye Institute (NEI) and the FDA emphasize standardized testing protocols, including chart design, testing distance, and critically \u003cstrong data-is-last-node=\"\" data-end=\"168\" data-start=\"144\"\u003eambient illumination\u003c\/strong\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003cp data-end=\"780\" data-start=\"485\"\u003e\u003cstrong data-end=\"522\" data-start=\"485\"\u003eWhy light standardization matters\u003c\/strong\u003e: Even modest deviations from the specified luminance range (\u003cspan style=\"color: rgb(244, 6, 18);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(244, 6, 18);\" href=\"\/blogs\/resources\/what-is-etdrs\" target=\"_blank\"\u003e160 cd\/m², aligned with ETDRS protocol requirements\u003c\/a\u003e\u003c\/span\u003e) can introduce variability in BCVA scores and undermine comparability across clinical sites. \u003cspan class=\"relative -mx-px my-\u0026lt;-0.2rem\u0026gt; rounded px-px py-\u0026lt;0.2rem\u0026gt; transition-colors duration-100 ease-in-out\"\u003eTo meet the strict requirements set forth by entities such as NIH\/NEI and the FDA, and to comply with quality standards sponsors can count on the Precision Vision Lux Light Meter just just for BCVA assessments but also for contrast sensitivity tests like the Pelli-Robson, \u003ca href=\"\/products\/mars-contrast-sensitivity-test\/\"\u003eMars\u003c\/a\u003e, and \u003ca href=\"\/products\/apex-2-5-contrast-sensitivity-test\"\u003eAPEX\u003c\/a\u003e.\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 data-end=\"437\" data-start=\"121\"\u003eDual-Range Light Meter\u003c\/h4\u003e\n\u003cp\u003eDual-Range Meter reads both lux and foot-candles on a large 1\/2-inch-high display. An analog output of 0.1 millivolt per digit allows readings to be captured by a recorder. Precision selenium photovoltaic cells and microprocessor provide for a fast-response sampling rate of 0.4 seconds and an automatic zero adjustment. Display update rate may be set to 1 or 2 seconds.\u003c\/p\u003e\n\u003ch4\u003eTraceable\u003csup\u003e®\u003c\/sup\u003e Certificate\u003c\/h4\u003e\n\u003cp\u003eAn individually-numbered Traceable® Certificate provided with each unit, assures accuracy from our calibration laboratory accredited by \u003ca rel=\"noopener noreferrer\" href=\"https:\/\/www.a2la.org\/genweb\/about.cfm\" target=\"_blank\"\u003eA2LA\u003c\/a\u003e. It indicates traceability of measurements to the SI units through \u003ca rel=\"noopener noreferrer\" href=\"https:\/\/www.nist.gov\/about-nist\" target=\"_blank\"\u003eNIST\u003c\/a\u003e or other recognized national measurement institutes that are signatories to the CIPM Mutual Recognition Agreement.\u003c\/p\u003e\n\u003ch4\u003eMonitor and store results\u003c\/h4\u003e\n\u003cp\u003eDATA HOLD button freezes the display to capture readings. Precise photodiode and color-correction filter provide cosine- and color-corrected measurements. Unit is supplied with 2 inch diameter photocell, 40-inch cable, Traceable\u003csup\u003e®\u003c\/sup\u003e Certificate, 9-volt alkaline battery, and recorder output.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eDual-Range Meter measures lux in three ranges:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e0 to 1999\u003c\/strong\u003e (1 lux resolution)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2000 to 19,990\u003c\/strong\u003e (10 lux resolution)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20,000 to 50,000\u003c\/strong\u003e (100 lux resolution)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eReadings in Foot-Candles (Fc):\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e0 to 199.9\u003c\/strong\u003e (0.1 Fc resolution)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e200 to 1999\u003c\/strong\u003e (1 Fc resolution)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2000 to 5000\u003c\/strong\u003e (10 Fc resolution)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMeasures:\u003c\/strong\u003e 6-1\/2\" x 3\" x 1-1\/2\" Inches (16.51 x 7.62 x 3.81 cm)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.625 Pounds (.28 Kg)\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eMade in the USA \u0026amp; CE Marked\u003c\/strong\u003e\u003c\/h5\u003e\n\u003ch5\u003e\u003ciframe height=\"100%\" width=\"100%\" src=\"https:\/\/player.vimeo.com\/video\/1121268995?badge=0\u0026amp;autopause=0\u0026amp;player_id=0\u0026amp;app_id=58479\u0026amp;muted=1\" title=\"Calibrated Dual-Range Light Meter (Lux and Foot-Candles) - Precision Vision\" loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/h5\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921492959393,"sku":"Lux","price":199.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/3251.jpg?v=1776157170"},{"product_id":"eyewalls-peel-stick-sloan-letters-etdrs-style-translucent-distance-chart","title":"EyeWalls™ Peel\/Stick Sloan Letters ETDRS® Style Translucent Distance Chart","description":"\u003cp\u003eTwo smaller groups 6M to 1.5M for repetitive testing (20\/40, 6\/12 to 20\/10, 6\/3 equiv.).\u003c\/p\u003e\n\u003cp\u003eRepositionable StikAbility™\u003c\/p\u003e\n\u003cp\u003eIncludes LogMar and Letter sizes on chart.\u003c\/p\u003e\n\u003cp\u003eLogarithmic chart uses traditional Sloan optotypes. These calibrated optotypes blur at threshold and adhere to the Snellen 5×5 grid. Sloan chart uses two smaller groups for repetitive testing and minimizes memorization. Logarithmic Sloan acuity test is a great screener for literate adults and children.\u003c\/p\u003e","brand":"ETDRS®, EyeWalls™","offers":[{"title":"Default Title","offer_id":45921493450913,"sku":"2103USEW","price":23.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/2103US_EW-Web.jpg?v=1776157168"},{"product_id":"lighthouse-etdrs-chart-r-lh-9142-2110","title":"Lighthouse ETDRS® Chart R LH 9142","description":"\u003cp\u003eLighthouse ETDRS® Chart R LH 9142 (2110)\u003c\/p\u003e\n\u003cp\u003eDeveloped by New York Lighthouse International. Constructed with the same precision, accuracy, and methodology as traditional ETDRS® charts.\u003c\/p\u003e\n\u003cp\u003eLines are of equal difficulty. Geometric progression in letter size from line to line. Letter size is only variable. Can be wall-mounted.\u003c\/p\u003e\n\u003cp\u003eETDRS® charts use a series of three charts with different permutations of optotypes.  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Use in rotation to eliminate learning effects across repeat visits.\u003c\/p\u003e","brand":"ETDRS®, Precision Vision","offers":[{"title":"Chart 1 \/ 2 m \/ 6.5 ft","offer_id":45921499447457,"sku":"2138","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 1 \/ 2.5 m \/ 8.3 ft","offer_id":45921499480225,"sku":"2144","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 1 \/ 3 m \/ 10 ft","offer_id":45921499512993,"sku":"2173","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 1 \/ 4 m \/ 13 ft","offer_id":45921499545761,"sku":"2110","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 2 \/ 2 m \/ 6.5 ft","offer_id":46444056740001,"sku":"2139","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 3 \/ 2 m \/ 6.5 ft","offer_id":46444056772769,"sku":"2140","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 2 \/ 2.5 m \/ 8.3 ft","offer_id":46444056838305,"sku":"2145","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 3 \/ 2.5 m \/ 8.3 ft","offer_id":46444056871073,"sku":"2146","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 2 \/ 3 m \/ 10 ft","offer_id":46444056936609,"sku":"2174","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 3 \/ 3 m \/ 10 ft","offer_id":46444056969377,"sku":"2175","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 2 \/ 4 m \/ 13 ft","offer_id":46444057034913,"sku":"2111","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 3 \/ 4 m \/ 13 ft","offer_id":46444057067681,"sku":"2112","price":69.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/2110_HiRes-1.png?v=1776157190"},{"product_id":"european-wide-series-etdrs-chart-1","title":"European Wide Series ETDRS® (Chart 1)","description":"\u003cp\u003eThe European Wide Series ETDRS® chart family — Chart 1, Chart 2, Chart 3, or the full Set of 3 — using European-wide optotypes in the standard ETDRS Logarithmic format across four testing distances (2 m, 2.5 m, 3 m, 4 m).\u003c\/p\u003e\u003cp\u003eDesigned to fit the 2425 \/ 2425 LED Large ETDRS® Illuminator Cabinets. 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Can be wall-mounted or utilized within the ETDRS Illuminator Cabinets.\u003cbr\u003eMassVAT Designed by: Luisa Mayer, Ph.D. and Bruce Moore, O.D.\u003c\/p\u003e\n\u003cp\u003e\u003c!-- \/wp:paragraph --\u003e\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"2.5 m \/ 8.3 ft","offer_id":45921499709601,"sku":"2019","price":69.0,"currency_code":"USD","in_stock":true},{"title":"3 m \/ 10 ft","offer_id":45921499742369,"sku":"2020","price":69.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/e8dcebfd55c9d5d7bbfc0a0f8263a6f3_XL.jpg?v=1776157189"},{"product_id":"lighthouse-etdrs-numbers-chart-lh-9243","title":"Lighthouse ETDRS® Numbers Chart LH 9243","description":"\u003cp\u003eLighthouse ETDRS® Numbers Chart\u003c\/p\u003e","brand":"ETDRS®, Lighthouse","offers":[{"title":"Original Version","offer_id":45921499775137,"sku":"C102","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Scrambled Version A","offer_id":45921499807905,"sku":"C102A","price":73.85,"currency_code":"USD","in_stock":true},{"title":"Scrambled Version B","offer_id":45921499840673,"sku":"C102B","price":73.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/C102.jpg?v=1776157190"},{"product_id":"patti-pics-folding-eye-chart","title":"Patti Pics™ Folding Eye Chart","description":"\u003cp\u003eMassVAT Designed by: Luisa Mayer, Ph.D. and Bruce Moore, O.D.\u003c\/p\u003e\n\u003cp\u003eCan be hand-held or there is a hole in the top to allow for wall mounting.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003eFRONT\u003c\/span\u003e\u003cbr\u003eProportional spacing\u003cbr\u003eVisual Acuity range 30M to 1.2M (20\/200 to 20\/8 equiv.)\u003cbr\u003eTwo smaller groups 6M to 1.2M (20\/40 to 20\/8 equiv.)\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003eBACK\u003c\/span\u003e\u003cbr\u003eMassVAT format\u003cbr\u003eVisual Acuity range 15M to 1.2M (20\/100 to 20\/8 equiv.)\u003c\/p\u003e\n\u003cp\u003eAmblyopia, or Lazy Eye, is a vision problem that effects the vision in one of the patients eyes. 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Tests that use interaction bars, such as MassVat, crowding bars, or contour lines help detect Amblyopia. 1-5% of the population is affected by Amblyopia and early detection is key.\u003c\/p\u003e\n\u003cp\u003e\u003c!-- wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003c!-- \/wp:paragraph --\u003e\u003c\/p\u003e","brand":"ETDRS®, Precision Vision","offers":[{"title":"Version 1","offer_id":45921500201121,"sku":"2501","price":76.0,"currency_code":"USD","in_stock":true},{"title":"Version 2","offer_id":45921500233889,"sku":"2502US","price":68.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/6ef598b10d1539793d4ace8d8b7b613f_XL-scaled-1.jpg?v=1776157191"},{"product_id":"european-wide-series-etdrs-chart-2","title":"European Wide Series ETDRS® (Chart 2)","description":"\u003cp\u003eTo facilitate reliable visual acuity screening for clinical trials and exchange of patient data between doctors, clinics and researchers throughout Europe and beyond, researchers at the University of Crete (Dr. Sotiris Plainis, Prof. Miltiadis Tsilimbaris and Prof. Ioannis Pallikaris), have developed modified ETDRS® charts that contain only capital letters that are common to all three European alphabets (Latin, Greek, Cyrillic), and are thus recognizable for a much wider population. The new charts have been validated against the original ETDRS® charts in Greece, Bulgaria and Belgium. They were found to produce comparable visual acuity scores with a test-retest repeatability of about 0.10 logMAR.\u003c\/p\u003e","brand":"ETDRS®, Precision Vision","offers":[{"title":"Scrambled Version A \/ 2 m \/ 6.5 ft","offer_id":45921500266657,"sku":"2805A","price":74.75,"currency_code":"USD","in_stock":true},{"title":"Scrambled Version A \/ 2.5 m \/ 8.3 ft","offer_id":45921500299425,"sku":"2804A","price":74.75,"currency_code":"USD","in_stock":true},{"title":"Original Version \/ 3 m \/ 10 ft","offer_id":45921500332193,"sku":"2802","price":74.75,"currency_code":"USD","in_stock":true},{"title":"Original Version \/ 4 m \/ 13 ft","offer_id":45921500364961,"sku":"2811","price":74.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/bd9435f235cb4005045f2e6c43e9346a_XL.jpg?v=1776157193"},{"product_id":"european-wide-series-etdrs-chart-3","title":"European Wide Series ETDRS® (Chart 3)","description":"\u003cp\u003eTo facilitate reliable visual acuity screening for clinical trials and exchange of patient data between doctors, clinics and researchers throughout Europe and beyond, researchers at the University of Crete (Dr. Sotiris Plainis, Prof. Miltiadis Tsilimbaris and Prof. Ioannis Pallikaris), have developed modified ETDRS® charts that contain only capital letters that are common to all three European alphabets (Latin, Greek, Cyrillic), and are thus recognizable for a much wider population. The new charts have been validated against the original ETDRS® charts in Greece, Bulgaria and Belgium. They were found to produce comparable visual acuity scores with a test-retest repeatability of about 0.10 logMAR.\u003c\/p\u003e","brand":"ETDRS®, Precision Vision","offers":[{"title":"Scrambled Version B \/ 2 m \/ 6.5 ft","offer_id":45921500397729,"sku":"2805B","price":74.75,"currency_code":"USD","in_stock":true},{"title":"Scrambled Version B \/ 2.5 m \/ 8.3 ft","offer_id":45921500430497,"sku":"2804B","price":74.75,"currency_code":"USD","in_stock":true},{"title":"Original Version \/ 3 m \/ 10 ft","offer_id":45921500463265,"sku":"2803","price":74.75,"currency_code":"USD","in_stock":true},{"title":"Original Version \/ 4 m \/ 13 ft","offer_id":45921500496033,"sku":"2812","price":74.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/bbdd9bab523659f72e79235cef0a8565_XL.jpg?v=1776157194"},{"product_id":"european-wide-series-etdrs-set-of-3","title":"European Wide Series ETDRS® (Set of 3)","description":"\u003cp\u003eTo facilitate reliable visual acuity screening for clinical trials and exchange of patient data between doctors, clinics and researchers throughout Europe and beyond, researchers at the University of Crete (Dr. Sotiris Plainis, Prof. Miltiadis Tsilimbaris and Prof. Ioannis Pallikaris), have developed modified ETDRS® charts that contain only capital letters that are common to all three European alphabets (Latin, Greek, Cyrillic), and are thus recognizable for a much wider population. The new charts have been validated against the original ETDRS® charts in Greece, Bulgaria and Belgium. They were found to produce comparable visual acuity scores with a test-retest repeatability of about 0.10 logMAR.\u003c\/p\u003e","brand":"ETDRS®, Precision Vision","offers":[{"title":"2 m \/ 6.5 ft","offer_id":45921500528801,"sku":"2800B4","price":224.25,"currency_code":"USD","in_stock":true},{"title":"2.5 m \/ 8.3 ft","offer_id":45921500561569,"sku":"2800B3","price":224.25,"currency_code":"USD","in_stock":true},{"title":"3 m \/ 10 ft","offer_id":45921500594337,"sku":"2800B2","price":224.25,"currency_code":"USD","in_stock":true},{"title":"4 m \/ 13 ft","offer_id":45921500627105,"sku":"2800B1","price":224.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/4MeterEuroWid.jpg?v=1776157194"},{"product_id":"pv-numbers-series-etdrs","title":"PV Numbers Series ETDRS®","description":"\u003cp\u003eThe PV Numbers Series ETDRS® chart family — Chart 1, Chart 2, Chart 3, or the full Set of 3 — using the PV Numbers (1, 2, 3, 5, 6, 7, 9) optotype set across the four standard ETDRS testing distances (2 m, 2.5 m, 3 m, 4 m).\u003c\/p\u003e\n\u003cp\u003ePV Numbers were developed to give numerically-literate patients a reliable Snellen-equivalent test that works across language barriers and avoids ambiguous letter optotypes. Use Charts 1, 2, and 3 in rotation as alternate-form charts to eliminate learning effects across repeat visits.\u003c\/p\u003e\n\u003cp\u003eDesigned to fit the 2425 \/ 2425 LED Large ETDRS® Illuminator Cabinets. A scrambled-form variant of Chart 1 is available as a separate product for advanced repeat-measurement protocols.\u003c\/p\u003e","brand":"ETDRS®, Precision Vision","offers":[{"title":"Chart 1 \/ 2 m \/ 6.5 ft","offer_id":45921501315233,"sku":"2723","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 1 \/ 2.5 m \/ 8.3 ft","offer_id":45921501348001,"sku":"2722","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 1 \/ 3 m \/ 10 ft","offer_id":45921501380769,"sku":"2714","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 1 \/ 4 m \/ 13 ft","offer_id":45921501413537,"sku":"2750","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 2 \/ 2 m \/ 6.5 ft","offer_id":46434367275169,"sku":"2723A","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 2 \/ 2.5 m \/ 8.3 ft","offer_id":46434367307937,"sku":"2722A","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 2 \/ 3 m \/ 10 ft","offer_id":46434367340705,"sku":"2714A","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 2 \/ 4 m \/ 13 ft","offer_id":46434367373473,"sku":"2750A","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 3 \/ 2 m \/ 6.5 ft","offer_id":46434367406241,"sku":"2723B","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 3 \/ 2.5 m \/ 8.3 ft","offer_id":46434367439009,"sku":"2722B","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 3 \/ 3 m \/ 10 ft","offer_id":46434367471777,"sku":"2714B","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 3 \/ 4 m \/ 13 ft","offer_id":46434367504545,"sku":"2750B","price":69.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/2750_Web.jpg?v=1776157199"},{"product_id":"tumbling-e-series-etdrs","title":"Tumbling E Series ETDRS®","description":"\u003cp\u003eThe Tumbling E Series ETDRS® chart family — Chart 1, Chart 2, Chart 3, or the full Set of 3 — using the Tumbling E optotype across the four standard ETDRS testing distances (2 m, 2.5 m, 3 m, 4 m).\u003c\/p\u003e\n\u003cp\u003eTumbling E removes any literacy requirement: patients indicate the direction in which the E \"points\" (up, down, left, right). 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Use Charts 1, 2, and 3 in rotation as alternate forms.\u003c\/p\u003e\n\u003cp\u003eDesigned to fit the 2425 \/ 2425 LED Large ETDRS® Illuminator Cabinets.\u003c\/p\u003e","brand":"ETDRS®, Precision Vision","offers":[{"title":"Chart 1 \/ 2 m \/ 6.5 ft","offer_id":45921504657569,"sku":"2309","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 1 \/ 2.5 m \/ 8.3 ft","offer_id":45921504690337,"sku":"2329","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 1 \/ 3 m \/ 10 ft","offer_id":45921504723105,"sku":"2308","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 1 \/ 4 m \/ 13 ft","offer_id":45921504755873,"sku":"2305","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 2 \/ 2 m \/ 6.5 ft","offer_id":46434365374625,"sku":"2309A","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 2 \/ 2.5 m \/ 8.3 ft","offer_id":46434365407393,"sku":"2329A","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 2 \/ 3 m \/ 10 ft","offer_id":46434365440161,"sku":"2308A","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 2 \/ 4 m \/ 13 ft","offer_id":46434365472929,"sku":"2305A","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 3 \/ 2 m \/ 6.5 ft","offer_id":46434365505697,"sku":"2309B","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 3 \/ 2.5 m \/ 8.3 ft","offer_id":46434365538465,"sku":"2329B","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 3 \/ 3 m \/ 10 ft","offer_id":46434365571233,"sku":"2308B","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 3 \/ 4 m \/ 13 ft","offer_id":46434365604001,"sku":"2305B","price":69.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/83ca58a2-sku-2305-tumbling-e-series-etdrs-chart-1-4-meter-distance.jpg?v=1776157208"},{"product_id":"hotv-series-etdrs","title":"HOTV Series ETDRS®","description":"\u003cp\u003eThe HOTV Series ETDRS® chart family — Chart 1, Chart 2, Chart 3, or the full Set of 3 — using the four-letter HOTV optotype set across the four standard ETDRS testing distances (2 m, 2.5 m, 3 m, 4 m).\u003c\/p\u003e\n\u003cp\u003eHOTV charts use only the letters H, O, T, V — letters that are easy to match with a key card, making them ideal for young children, non-readers, and developmentally delayed patients. Use Charts 1, 2, and 3 as alternate-form charts to eliminate learning effects.\u003c\/p\u003e\n\u003cp\u003eDesigned to fit the 2425 \/ 2425 LED Large ETDRS® Illuminator Cabinets. A scrambled-format variant of Chart 1 is available as a separate product for advanced repeat-measurement protocols.\u003c\/p\u003e","brand":"ETDRS®, Precision Vision","offers":[{"title":"Chart 1 \/ 2 m \/ 6.5 ft","offer_id":45921505312929,"sku":"2033","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 1 \/ 2.5 m \/ 8.3 ft","offer_id":45921505345697,"sku":"2032","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 1 \/ 3 m \/ 10 ft","offer_id":45921505378465,"sku":"2015","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 1 \/ 4 m \/ 13 ft","offer_id":45921505411233,"sku":"2052","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 2 \/ 2 m \/ 6.5 ft","offer_id":46434366062753,"sku":"2033A","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 2 \/ 2.5 m \/ 8.3 ft","offer_id":46434366095521,"sku":"2032A","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 2 \/ 3 m \/ 10 ft","offer_id":46434366128289,"sku":"2015A","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 2 \/ 4 m \/ 13 ft","offer_id":46434366161057,"sku":"2052A","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 3 \/ 2 m \/ 6.5 ft","offer_id":46434366193825,"sku":"2033B","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 3 \/ 2.5 m \/ 8.3 ft","offer_id":46434366226593,"sku":"2032B","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 3 \/ 3 m \/ 10 ft","offer_id":46434366259361,"sku":"2015B","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Chart 3 \/ 4 m \/ 13 ft","offer_id":46434366292129,"sku":"2052B","price":69.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/6288695a-sku-2052-hotv-series-etdrs-chart-1-4-meter-distance.jpg?v=1776157212"},{"product_id":"lighthouse-series-etdrs-chart-1","title":"Lighthouse Series ETDRS® (Chart 1)","description":"\u003cp\u003eLighthouse charts are a legacy in the low vision world. Developed by great contributors decades ago and still sought after as much today as then. Constructed with the same precision, accuracy, and methodology as traditional ETDRS® charts. Licensed by VFO and exclusively manufactured by Precision Vision, Inc.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/products\/hotv-series-etdrs-chart-1-scramble\"\u003eLooking for a scrambled version?\u003c\/a\u003e\u003c\/p\u003e","brand":"ETDRS®, Precision Vision","offers":[{"title":"2 m \/ 6.5 ft","offer_id":45921506984097,"sku":"2900-0","price":69.75,"currency_code":"USD","in_stock":true},{"title":"2.5 m \/ 8.3 ft","offer_id":45921507016865,"sku":"2900-1","price":69.75,"currency_code":"USD","in_stock":true},{"title":"3 m \/ 10 ft","offer_id":45921507049633,"sku":"2900-2","price":69.75,"currency_code":"USD","in_stock":true},{"title":"4 m \/ 13 ft","offer_id":45921507082401,"sku":"2900-3","price":69.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/1.jpg?v=1776157218"}],"url":"https:\/\/precision-vision.com\/collections\/etdrs.oembed?page=2","provider":"Precision Vision","version":"1.0","type":"link"}