{"product_id":"snellen-chart-red-and-green-bar-visual-acuity-test","title":"Snellen Chart: Red and Green Bar Visual Acuity Test","description":"\u003cp\u003eThis Snellen chart includes Red and Green color bars for an easy and helpful place start the test.\u003c\/p\u003e\n\u003cp\u003eScreens for Amblyopia.\u003c\/p\u003e\n\u003cp\u003eSnellen optotypes date back to 1862, when Herman Snellen released his first eye test in England. These Snellen optotypes have changed little throughout the years and are used regularly today. These optotypes feature strong serifs and follow idea of the 5x5 grid. This idea is being used by many other optotypes today, including Sloan and Patti Pics optotypes. Snellen chart is also coupled with red and green stripes for an ease of testing.\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921482604705,"sku":"5010","price":23.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/e529a8dc22bd84a37f6f8ae6b8ce40d3_XL-scaled-1.jpg?v=1776157139","url":"https:\/\/precision-vision.com\/products\/snellen-chart-red-and-green-bar-visual-acuity-test","provider":"Precision Vision","version":"1.0","type":"link"}