{"product_id":"stereo-butterfly-test","title":"Stereo Butterfly Test","description":"\u003cp\u003eStereo depth perception tests are an effective and easy to use method of screening stereoscopic vision for all ages. They help to detect visual problems such as stereopsis, amblyopia, suppression and strabismus.\u003c\/p\u003e\n\u003cp\u003eThis test is designed for the testing and evaluation of both gross stereopsis and depth perception. The test involves the use of a butterfly picture during testing. Each set of wings an the abdomen feature different seconds of arc (upper wings 2000 seconds of arc, lower wings 1150 seconds of arc, and abdomen 700 seconds of arc). This helps to test several different levels of stereopsis and presents a more in depth stereo test.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTests and evaluates random dot stereo depth perception for both gross stereopsis and fine depth perception\u003c\/li\u003e\n\u003cli\u003eOffers no monocular clues to discourage guessing\u003c\/li\u003e\n\u003cli\u003eRandom butterfly test for gross stereopsis (2500 to 1200 seconds of arc)\u003c\/li\u003e\n\u003cli\u003eGraded circle test (800 to 40 seconds of arc)\u003c\/li\u003e\n\u003cli\u003eAnimal test for children (400 to 100 seconds of arc)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTest Includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 Pair of Standard 3-D Viewer Glasses\u003c\/li\u003e\n\u003cli\u003eAnswer Key on Back Cover\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eThis test is produced by: Stereo Optical Company, Inc. Randot is a registered trademark of Stereo Optical Company, Inc. \u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/blogs\/newsletters\/about-stereo-vision-screening-and-tests\" target=\"_blank\" rel=\"noopener\"\u003eWhat is Stereo Vision Screening and What Are the Different Types of Stereo Vision Tests?\u003c\/a\u003e\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921481130145,"sku":"3703","price":218.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/68510e48-stereo-butterfly-test-1.jpg?v=1776157143","url":"https:\/\/precision-vision.com\/products\/stereo-butterfly-test","provider":"Precision Vision","version":"1.0","type":"link"}