{"product_id":"pv-numbers-series-etdrs-chart-with-islands-4-meter","title":"PV Numbers Series ETDRS® Chart With Islands (4 Meter)","description":"\u003cp\u003eFor Testing at 4 Meters (13 Feet). Can be wall-mounted or utilized within the Precision Vision ETDRS Illuminator Cabinets.\u003c\/p\u003e\n\u003cp\u003eMuch like Patti Pics optotypes, PV Number optotypes follow a Sloan standard. Not only do PV Numbers adhere to the Sloan 5×5 grid, but the numbers have been chosen specifically for their difficulty level. PV Numbers also have an equal blur at the threshold. By following a constant standard for each charts recordings are more accurate and reliable. Also, each test will have the same results no matter if it uses Sloan, PV Numbers, or Patti Pics optotypes.\u003c\/p\u003e\n\u003cp\u003eLooking for a scrambled version? Click the drop down menu above.\u003c\/p\u003e","brand":"ETDRS®, Precision Vision","offers":[{"title":"Original Version","offer_id":45921512980641,"sku":"2702","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Scrambled Version A","offer_id":45921513013409,"sku":"2702A","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Scrambled Version B","offer_id":45921513046177,"sku":"2702B","price":69.75,"currency_code":"USD","in_stock":true},{"title":"Full Set","offer_id":45921513078945,"sku":"2702-A-B","price":195.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/05c079c0-2702_setof3.jpg?v=1776157243","url":"https:\/\/precision-vision.com\/products\/pv-numbers-series-etdrs-chart-with-islands-4-meter","provider":"Precision Vision","version":"1.0","type":"link"}