{"title":"visual-fields-tests","description":null,"products":[{"product_id":"krug-vision-disability-screening-card","title":"Krug Vision Disability Screening Card","description":"\u003cp\u003eVision Disability Screening Card.  The Vision Disability Screening Card has been developed for Agency professionals and primary eye and medical physicians to easily screen for functional loss of near vision affecting activities of daily living (ability to read 1 M newsprint). It also incorporates a line of 20\/100 distance vision letters to screen for legal blindness using the updated 2007 criteria (71 FR 67037).\u003c\/p\u003e\n\u003cp\u003eBy quickly determining if a person is visually impaired, referral to Vision Rehabilitation professionals can be made in a timely manner. And it provides non-vision professionals with more confidence in making referrals to eye care providers.\u003c\/p\u003e\n\u003cp\u003eThe Vision Disability Screening Card is manufactured from plastic stock with a 40cm cord attached for testing at a uniform distance. It is printed on both sides of the card with different text on each side to facilitate screening the two eyes.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eDirections for Use of Screening Card\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePatient is seated in the exam chair.\u003c\/li\u003e\n\u003cli\u003eUse direct illumination with the exam chair light at approximately 20\".\u003c\/li\u003e\n\u003cli\u003eUse the patients' habitual reading prescription.\u003c\/li\u003e\n\u003cli\u003eTest the patient at the 40 cm test distance (string length).Section 1 (1M High Contrast Text):\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eSection 1 (1M High Contrast Text):\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTest is Monocular - use occluder.\u003c\/li\u003e\n\u003cli\u003eIf patient cannot read accurately in 6-10 seconds or less-Fail. Six seconds is a reading speed of 100 words per minute. Average for normally sighted adults is \u0026gt;200 words per minute. The goal is fluent reading at a reasonable speed.\u003c\/li\u003e\n\u003cli\u003eResults are Pass or FailSection 2 (1M Low Contrast text):\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eSection 2 (1M Low Contrast text):\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTest is Monocular - use occluder.\u003c\/li\u003e\n\u003cli\u003eIf patient cannot read accurately-Fail.\u003c\/li\u003e\n\u003cli\u003eResults are Pass or Fail\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eSection 3 (Amsler Grid):\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTest is Monocular - use occluder.\u003c\/li\u003e\n\u003cli\u003eCan patient read the letter at fixation? Use back of card for second eye.\u003c\/li\u003e\n\u003cli\u003eResults are Pass or Fail\u003c\/li\u003e\n\u003cli\u003eDoes patient report distortion, or scotoma?\u003c\/li\u003e\n\u003cli\u003eResults are Pass or Fail\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eSection 4 (Legal Blindness Screening):\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTest is Monocular - use occluder.\u003c\/li\u003e\n\u003cli\u003eCard is placed at 10 feet.\u003c\/li\u003e\n\u003cli\u003ePatient should be wearing their best distance correction.\u003c\/li\u003e\n\u003cli\u003eIf patient cannot read any letters on the 20\/100 test line, they are worse than 20\/100 distance acuity. If worse than 20\/100 in each eye, they may be “Legally Blind”.\u003c\/li\u003e\n\u003cli\u003eNote, this acuity test only screens for central acuity loss. Legal blindness can also be caused by a loss of visual field to 20 degrees or less in each eye. Only an Optometrist or Ophthalmologist can certify a patient as Legally Blind.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e*Failure of any section of this screening test indicates the possibility of a significant visual impairment. Referral to an eye care provider familiar with low vision rehabilitation is recommended*\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921485750433,"sku":"Krug","price":48.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/49d777cdd477e76dea7b279017b034de_XL.jpg?v=1776157156"},{"product_id":"the-optec-vision-screening-by-stereo-optical","title":"The Optec Vision Screening by Stereo Optical","description":"\u003cp\u003e\u003cstrong\u003eTHE OPTEC® 5500\/5500P WITH MANUAL CONTROL INCLUDES: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• Accessory Kit (Includes: dust cover, pointer, lens cleaner, headrest tissues, recording forms, and instruction manual)\u003c\/p\u003e\n\u003cp\u003eStandard Slide Packages for Optec® 5000 Series (12 slides each)\u003cbr\u003e\n\u003cem\u003eClick on the red words below for further information.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eOphthalmic Prescreening \u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2018\/09\/OPTECSLIDE-Ophthalmic-Prescreening-Slide-Package-1.pdf\" target=\"_blank\" rel=\"noopener\"\u003eSlide Package\u003c\/a\u003e \u0026amp; \u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2018\/09\/OPTECSLIDE-Ophthalmic-Prescreening-Instructions-1.pdf\" target=\"_blank\" rel=\"noopener\"\u003eInstructions\u003c\/a\u003e\u003cbr\u003e\nMichigan Preschool \u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2018\/09\/OPTECSLIDE-Medical-Michigan-Preschool-Slide-Package-1.pdf\" target=\"_blank\" rel=\"noopener\"\u003eSlide Package\u003c\/a\u003e \u0026amp; \u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2018\/09\/OPTECSLIDE-Medical-Mich.-Preschool-Instructions-1.pdf\" target=\"_blank\" rel=\"noopener\"\u003eInstructions\u003c\/a\u003e\u003cbr\u003e\nH.O.T.V. \u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2018\/09\/OPTECSLIDE-Medical-w-HOTV-Slide-Package-1.pdf\" target=\"_blank\" rel=\"noopener\"\u003eSlide Package\u003c\/a\u003e \u0026amp; \u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2018\/09\/OPTECSLIDE-Medical-with-HOTV-Instructions-1.pdf\" target=\"_blank\" rel=\"noopener\"\u003eInstructions\u003c\/a\u003e\u003cbr\u003e\nDriver Rehabilitation \u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2018\/09\/OPTECSLIDE-Driver-Rehabilitation-Slide-Package-1.pdf\" target=\"_blank\" rel=\"noopener\"\u003eSlide Package\u003c\/a\u003e \u0026amp; \u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2018\/09\/OPTECSLIDE-Driver-Rehab-Instructions-1.pdf\" target=\"_blank\" rel=\"noopener\"\u003eInstructions\u003c\/a\u003e\u003cbr\u003e\nIndustrial \u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2018\/09\/OPTECSLIDE-Industrial-Slide-Package-1.pdf\" target=\"_blank\" rel=\"noopener\"\u003eSlide Package\u003c\/a\u003e \u0026amp; \u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2018\/09\/OPTECSLIDE-Industrial-Instructions.pdf\" target=\"_blank\" rel=\"noopener\"\u003eInstructions\u003c\/a\u003e\u003cbr\u003e\nInternational \u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2018\/09\/OPTECSLIDE-International-Slide-Package-1.pdf\" target=\"_blank\" rel=\"noopener\"\u003eSlide Package\u003c\/a\u003e \u0026amp; \u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2018\/09\/OPTECSLIDE-International-Slide-Instructions-1.pdf\" target=\"_blank\" rel=\"noopener\"\u003eInstructions\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePerform comprehensive visual screening in minimal time. Screen under a variety of conditions, including monocular, binocular, near, distance, and intermediate. The Optec® 5500P can also function as a peripheral vision test. Adult and pediatric visual acuities, color and depth perception, as well as vertical and lateral phorias.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptec5500 \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptec5500P (With Peripheral)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePerform comprehensive visual screening in minimal time. Screen under a variety of conditions, including monocular, binocular, near, distance, and intermediate. The Optec® 5000P can also function as a peripheral vision test. Adult and pediatric visual acuities, color and depth perception, as well as vertical and lateral phorias.\u003c\/p\u003e\n\u003cp\u003eVisual screening and peripheral vision test standards that meet the standards set by the American National Standards Institute (ANSI).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES:\u003cbr\u003e\n\u003c\/strong\u003e• Quick, repeatable and accurate\u003c\/p\u003e\n\u003cp\u003e• Remote control and use of color-corrected LED’s\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 3pt; line-height: 12.05pt;\"\u003e• Lightweight and portable\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 3pt; line-height: 12.05pt;\"\u003e• Distance\/Near Lens Systems\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 3pt; line-height: 12.05pt;\"\u003e• See and point observation doors on both sides\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 3pt; line-height: 12.05pt;\"\u003e• No training or certification\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e*\u003c\/strong\u003eIncludes a slide package, a set of 12 test slides as well as the option to create a vision testing slides library of more than 150 test slides\u003c\/p\u003e\n\u003cp\u003eAncillary staff can test Acuities (Near\/Far\/Monocular\/Binocular), Ishihara Color, Stereopsis (Depth Perception), Phorias, Astigmatic Clock, and much more in under 3 minutes!\u003c\/p\u003e\n\u003cp\u003eLightweight and portable, weighing less than 15 lbs (6.8 kg), requiring only 2 square ft (0.6 m) of space, has scratch resistant and washable surface made of ABS plastic.\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003e*2 year warranty\u003c\/i\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"5000 \/ With Peripheral","offer_id":45921502134433,"sku":"Optec5000P","price":4230.0,"currency_code":"USD","in_stock":true},{"title":"5000 \/ Without Peripheral","offer_id":45921502167201,"sku":"Optec5000","price":3870.0,"currency_code":"USD","in_stock":true},{"title":"5500 \/ With Peripheral","offer_id":45921502199969,"sku":"Optec5500P","price":5050.0,"currency_code":"USD","in_stock":true},{"title":"5500 \/ Without Peripheral","offer_id":45921502232737,"sku":"Optec5500","price":4640.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/3d4417dea4b5985d283b0a7dfa9861de_XL-scaled-1.jpg?v=1776157202"},{"product_id":"central-visual-fields","title":"Central Visual Fields","description":"\u003cp\u003eMeasure the patient's visual fields using black on white targets when the white background is at the same luminance as the background used for the Precision Vision Visual Acuity and Contrast Sensitivity tests.\u003c\/p\u003e\n\u003cp\u003eUtilizing the Precision Vision Illuminator Cabinet makes it easy for the clinician to move the field test so that it is close to the patient. This is generally better than making the patient move out of the chair, to walk , and then to sit at the appropriate distance for the field test.\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921502953633,"sku":"2970","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/CVF-Finished-Image.png?v=1776157203"},{"product_id":"trashed","title":"California Central Visual Field Test","description":"\u003cp\u003eFor many years the Fletcher Central Field Test was an inexpensive clinical tool commercially available for mapping scotoma(s) and islands of vision in the central twenty degrees of visual field. The significantly better alternative was the Scanning Laser Ophthalmoscope (SLO), but it was out of the financial reach of the majority of low vision rehabilitation practices.\u003c\/p\u003e\n\u003cp\u003eAs the practice of low vision rehabilitation has increasingly put an emphasis on the ability to accurately map the central field and correspondingly train the patient to effectively use their remaining vision, Drs. Don Fletcher, Ron Cole and Rebecca Kammer have worked with the original Fletcher Test and made clinical improvements to develop the new California Central Visual Field Test.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe major improvements are:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e1. Several levels of brightness and size of the laser dot can be used, instead of just one, allowing more sensitivity in plotting relative scotomas that are not dense but are still clinically significant.\u003cbr\u003e2. The tangent field testing form can be moved from being placed on a table between the examiner and the patient, to an upright position between the examiner and patient, allowing the examiner to better view the patient's fixation and eye movements during the test. An additional benefit is that other observers, including family members, can also see the testing results and learn about the patient's vision.\u003cbr\u003e3. By using a clear upright holder for the form, the examiner can also view the laser spot on the form simultaneously with the patient. Adaptive patterns of eccentric fixation can be observed. The examiner can detect fixation losses when the patient moves fixation to the presented stimulus instead of maintaining the central reference point, and prompt the patient to direct their gaze back to the central fixation dot, allowing a more accurately plotted scotoma pattern. Alternating eye fixations may also be observed.\u003cbr\u003e4. The test may be administered either monocularly or binocularly. Administration of the Test binocularly provides a functional field as used by the patient for activities of daily living as would occur in real world situations. The monocular fields are often uniquely different (a disSMARTMag® of the SLO), and may not correlate to the patient's compensatory techniques. Improved hard copy documentation of the central field can be made for insurance\/reimbursement purposes.\u003cbr\u003e5. Clinical observations have shown good correlation between the California Central Visual Field Test and the SLO.\u003c\/p\u003e\n\u003ch3\u003eContents of the CCVFT\u003c\/h3\u003e\n\u003cp\u003e1. Upright plastic tangent field form holder\u003cbr\u003e2. Three unique reproducible tangent field forms (varying sized central fixation dots) for testing and scoring\u003cbr\u003e3. Three unique laser pens (each has a different colored metal housing) offering three levels of brightness and size of the laser dot\u003cbr\u003e4. Detailed instructions written by Drs. Fletcher, Cole and Kammer.\u003c\/p\u003e\n\u003ch3\u003eIndications for Using the California Central Visual Field Test\u003c\/h3\u003e\n\u003cp\u003e1. Suspected central field defects\u003cbr\u003e2. Macular disease including age-related macular degeneration and diabetic retinopathy (ischemic maculopathy and post focal laser photocoagulation)\u003cbr\u003e3. Optic neuropathies, including glaucoma\u003cbr\u003e4. Difficulty with word and letter misidentification in spite of adequate magnification\u003cbr\u003e5. Difficulty with page navigation (losing place, skipping lines, rereading text, etc.)\u003cbr\u003e6. Slow reading that may be caused by scotomas\u003cbr\u003e7. Need for education of patient in location of scotomas and compensatory eye movements to avoid scotomas\u003c\/p\u003e\n\u003cp\u003e\u003c!-- wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp\u003eDeveloped by:\u003cbr\u003eDonald Fletcher, MD (Primary)\u003cbr\u003eOphthalmologist,\u003cbr\u003eCalifornia Medical Center,\u003cbr\u003eSan Francisco, CA USA\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\u003eRonald Cole, MD\u003cbr\u003eOphthalmologist,\u003cbr\u003eMVT Vision Rehabilitation Center,\u003cbr\u003eSacramento, CA USA\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\u003eRebecca Kammer, OD\u003cbr\u003eChief, Low Vision Center,\u003cbr\u003eSouthern California College of Optometry,\u003cbr\u003eFullerton, CA USA\u003c\/p\u003e\n\u003cp\u003e\u003c!-- \/wp:paragraph --\u003e\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921512915105,"sku":"CCVFT","price":190.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/d2c45171-ccvft.jpg?v=1776157237"}],"url":"https:\/\/precision-vision.com\/collections\/visual-fields-tests.oembed","provider":"Precision Vision","version":"1.0","type":"link"}