{"product_id":"sloan-letters-etdrs-2000-series-charts-1-2-40-cm-66-cm-near-vision-card","title":"Sloan Letters ETDRS 2000 Series, Charts 1 \u0026 2, 40 cm \/ 66 cm Near Vision Card","description":"\u003cp\u003eThe \u003cstrong\u003ePrecision Vision 2140-66 Sloan Letters ETDRS Near Vision Card\u003c\/strong\u003e is a \u003cstrong\u003edouble-sided logarithmic visual acuity chart\u003c\/strong\u003e designed for standardized near and intermediate visual acuity testing at \u003cstrong\u003e40 cm (16 in) and 66 cm (26 in)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe card incorporates \u003cstrong\u003eSloan letter optotypes\u003c\/strong\u003e arranged in scrambled sequences derived from the \u003cstrong\u003eETDRS Original and ETDRS 2000 series\u003c\/strong\u003e. Each side is calibrated for its specified testing distance and uses \u003cstrong\u003e0.1 log unit progression between acuity levels\u003c\/strong\u003e, supporting consistent letter-by-letter visual acuity assessment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChart 1\u003c\/strong\u003e is calibrated for testing at \u003cstrong\u003e66 cm (26 in)\u003c\/strong\u003e and provides an extended range from approximately \u003cstrong\u003e20\/250 to 20\/6.3\u003c\/strong\u003e. \u003cstrong\u003eChart 2\u003c\/strong\u003e is calibrated for testing at \u003cstrong\u003e40 cm (16 in)\u003c\/strong\u003e and ranges from \u003cstrong\u003e20\/400 to 20\/10\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAn \u003cstrong\u003eattached measuring cord with three positioning balls\u003c\/strong\u003e accommodates both the 40 cm and 66 cm testing distances, helping the examiner establish and maintain the appropriate chart-to-patient distance during testing.\u003c\/p\u003e\n\u003cp\u003eThe chart displays multiple visual acuity notations alongside each line, including \u003cstrong\u003eM-unit letter size, logMAR, decimal acuity, 6-meter Snellen equivalent, and 20-foot Snellen equivalent\u003c\/strong\u003e, allowing results to be interpreted and documented using commonly utilized acuity scales.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"margin-top: 0; margin-bottom: 0; padding-left: 1.25em;\"\u003e\n\u003cli style=\"margin: 0; padding: 0;\"\u003e\u003cstrong\u003eSloan letter optotypes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"margin: 0; padding: 0;\"\u003e\u003cstrong\u003eETDRS Original and ETDRS 2000 Series letter sequences\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"margin: 0; padding: 0;\"\u003e\u003cstrong\u003eDouble-sided Chart 1 and Chart 2 configuration\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"margin: 0; padding: 0;\"\u003eTwo calibrated testing distances:\n\u003cul style=\"margin-top: 0; margin-bottom: 0; padding-left: 1.25em;\"\u003e\n\u003cli style=\"margin: 0; padding: 0;\"\u003e\u003cstrong\u003eChart 1: 66 cm \/ 26 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"margin: 0; padding: 0;\"\u003e\u003cstrong\u003eChart 2: 40 cm \/ 16 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin: 0; padding: 0;\"\u003eAttached \u003cstrong\u003emeasuring cord with three positioning balls\u003c\/strong\u003e for use at both testing distances\u003c\/li\u003e\n\u003cli style=\"margin: 0; padding: 0;\"\u003e\n\u003cstrong\u003e0.1 log unit increments\u003c\/strong\u003e between acuity levels\u003c\/li\u003e\n\u003cli style=\"margin: 0; padding: 0;\"\u003eFive Sloan letters per full-size acuity line through the primary testing range\u003c\/li\u003e\n\u003cli style=\"margin: 0; padding: 0;\"\u003eMultiple acuity notations:\n\u003cul style=\"margin-top: 0; margin-bottom: 0; padding-left: 1.25em;\"\u003e\n\u003cli style=\"margin: 0; padding: 0;\"\u003eM units\u003c\/li\u003e\n\u003cli style=\"margin: 0; padding: 0;\"\u003elogMAR\u003c\/li\u003e\n\u003cli style=\"margin: 0; padding: 0;\"\u003eDecimal acuity\u003c\/li\u003e\n\u003cli style=\"margin: 0; padding: 0;\"\u003e6-meter Snellen equivalent\u003c\/li\u003e\n\u003cli style=\"margin: 0; padding: 0;\"\u003e20-foot Snellen equivalent\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin: 0; padding: 0;\"\u003eHigh-contrast black optotypes on a white background\u003c\/li\u003e\n\u003cli style=\"margin: 0; padding: 0;\"\u003eDesigned for \u003cstrong\u003eclinical, research, and standardized visual acuity testing\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 11.0pt; font-family: 'Century Gothic',sans-serif; mso-fareast-font-family: 'Times New Roman'; color: black;\"\u003eAcuity Ranges\u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"font-size: 11.0pt; font-family: 'Century Gothic',sans-serif; mso-fareast-font-family: 'Times New Roman'; color: black;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable class=\"MsoNormalTable\" border=\"0\" cellspacing=\"3\" cellpadding=\"0\" style=\"margin-left: 30pt; width: 78.9286%; height: 109.583px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 36.5278px;\"\u003e\n\u003ctd style=\"padding: 0.75pt; text-align: left; width: 16.6049%; height: 36.5278px;\"\u003e\n\u003cp class=\"MsoNormal\" align=\"center\" style=\"text-align: left;\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 11.0pt; font-family: 'Century Gothic',sans-serif; mso-fareast-font-family: 'Times New Roman'; color: black;\"\u003eSide\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 0.75pt; text-align: left; width: 36.5703%; height: 36.5278px;\"\u003e\n\u003cp class=\"MsoNormal\" align=\"center\" style=\"text-align: left;\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 11.0pt; font-family: 'Century Gothic',sans-serif; mso-fareast-font-family: 'Times New Roman'; color: black;\"\u003eTesting Distance\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 0.75pt; width: 45.8611%; height: 36.5278px;\"\u003e\n\u003cp class=\"MsoNormal\" align=\"center\" style=\"text-align: left;\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 11.0pt; font-family: 'Century Gothic',sans-serif; mso-fareast-font-family: 'Times New Roman'; color: black;\"\u003eApproximate Range\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36.5278px;\"\u003e\n\u003ctd style=\"padding: 0.75pt; width: 16.6049%; height: 36.5278px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 11.0pt; font-family: 'Century Gothic',sans-serif; mso-fareast-font-family: 'Times New Roman'; color: black;\"\u003eChart 1\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 0.75pt; width: 36.5703%; height: 36.5278px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 11.0pt; font-family: 'Century Gothic',sans-serif; mso-fareast-font-family: 'Times New Roman'; color: black;\"\u003e66 cm \/ 26 in\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 0.75pt; width: 45.8611%; height: 36.5278px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 11.0pt; font-family: 'Century Gothic',sans-serif; mso-fareast-font-family: 'Times New Roman'; color: black;\"\u003e20\/250 to 20\/6.3\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36.5278px;\"\u003e\n\u003ctd style=\"padding: 0.75pt; width: 16.6049%; height: 36.5278px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 11.0pt; font-family: 'Century Gothic',sans-serif; mso-fareast-font-family: 'Times New Roman'; color: black;\"\u003eChart 2\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 0.75pt; width: 36.5703%; height: 36.5278px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 11.0pt; font-family: 'Century Gothic',sans-serif; mso-fareast-font-family: 'Times New Roman'; color: black;\"\u003e40 cm \/ 16 in\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 0.75pt; width: 45.8611%; height: 36.5278px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 11.0pt; font-family: 'Century Gothic',sans-serif; mso-fareast-font-family: 'Times New Roman'; color: black;\"\u003e20\/400 to 20\/10\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 11.0pt; font-family: 'Century Gothic',sans-serif; mso-fareast-font-family: 'Times New Roman'; color: black;\"\u003eDouble-sided Sloan Letters ETDRS 2000 Series near vision chart with Chart 1 calibrated for 66 cm (26 in) and Chart 2 calibrated for 40 cm (16 in).\u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"font-size: 11.0pt; font-family: 'Century Gothic',sans-serif; mso-fareast-font-family: 'Times New Roman'; color: black;\"\u003e Features scrambled Sloan letter sequences derived from the ETDRS Original and ETDRS 2000 series with acuity levels progressing in \u003cb\u003e0.1 log unit increments\u003c\/b\u003e. Displays M-unit, logMAR, decimal, and Snellen equivalents. Includes an \u003cb\u003eattached measuring cord with three positioning balls\u003c\/b\u003e to accommodate both standardized testing distances.\u003c\/span\u003e\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":47426469331105,"sku":"2140-66","price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/2140-66FinishedRendering.jpg?v=1789501431","url":"https:\/\/precision-vision.com\/products\/sloan-letters-etdrs-2000-series-charts-1-2-40-cm-66-cm-near-vision-card","provider":"Precision Vision","version":"1.0","type":"link"}