{"product_id":"pd-ruler","title":"PD Ruler","description":"\u003cp class=\"faq-answer font-size-20-1440\"\u003eEvery set of prescription lenses has an “optical center,” which is determined by pupillary distance (PD). Pupillary distance is used to determine where you look through the lens of your glasses and should be as accurate as possible.\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921513832609,"sku":"PD RULERS","price":5.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/e05498ac-pd-ruler_pv.jpg?v=1776157240","url":"https:\/\/precision-vision.com\/products\/pd-ruler","provider":"Precision Vision","version":"1.0","type":"link"}