{"product_id":"logmar-4m-etdrs-number-chart","title":"Logmar 4m ETDRS Number Chart","description":"\u003cdiv class=\"ewa-rteLine\"\u003eLogmar 4m ETDRS Number Chart\n\n4 metre viewing.\n Acuity range 40m to 2M.\n\nWill fit illuminated cabinets \u003ca href=\"%%+logmar-chart-slim-cabinet-sussex-p-5539.html%%-\"\u003eSDT-392-LSV\u003c\/a\u003e and \u003ca href=\"%%+precision-vision-logmar-cabinet-p-5544.html%%-\"\u003eSDT-396-LPV\u003c\/a\u003e\n\nThese Original Charts - Are the only standardised format acceptable in studies sponsored by the American National Eye Institute. They were designed for use in clinical studies and low vision evaluations where accurate, repeatable visual acuity measurements are required. The lines are of equal difficulty and geometrical progressions, in number, from line to line.\u003cbr\u003e\n\u003cbr\u003e\n\u003cbr\u003e\n\n\n\u003c\/div\u003e","brand":"SV","offers":[{"title":"Default Title","offer_id":53796953456983,"sku":"SV-SDT-275-0","price":201.73,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-275-0.jpg?v=1781603759","url":"https:\/\/www.sussex-vision.co.uk\/products\/logmar-4m-etdrs-number-chart","provider":"ESP\/SV","version":"1.0","type":"link"}