{"product_id":"pv-numbers-massvat-vision-chart-with-50-spacing","title":"PV Numbers MassVAT vision chart with 50% spacing","description":"\u003cp\u003eTwo smaller groups 4.8M to 2.4M for repetitive testing (20\/32, 6\/9.5 to 20\/16, 6\/4.8 equiv.).\u003c\/p\u003e\n\u003cp\u003eCan be wall-mounted.\u003c\/p\u003e\n\u003cp\u003eIf a proportionally spaced chart is too difficult for your patients, try using a chart containing a MassVAT format. Testability using the MassVAT format in young children is high. The rectangular outline surrounding the five optotypes is 50% of the width of the optotype. Thus, it provides adequate contour interaction to detect amblyopia. MassVAT Developed by: Luisa Mayer, Ph.D. and Bruce Moore, O.D. MassVat formats are available in many different style charts.\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921481883809,"sku":"2746","price":23.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/11ff9b4c887cc2e009006cc7fd3aeb4c_XL-scaled-1.jpg?v=1776157139","url":"https:\/\/precision-vision.com\/products\/pv-numbers-massvat-vision-chart-with-50-spacing","provider":"Precision Vision","version":"1.0","type":"link"}