{"product_id":"stereo-optical-stereo-butterfly-test","title":"Stereo Optical: Butterfly Stereotest","description":"\u003cp class=\"MsoNormal\"\u003eThe Stereo Butterfly tests and evaluates random dot stereo depth perception for both gross stereopsis (2500 to 1200 seconds of arc) and fine depth perception. The figures present on the test cannot be identified without viewing glasses.\u003c\/p\u003e\n\u003ch4 class=\"MsoNormal\"\u003eFeatures included:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003eGraded circle test (800 to 40 seconds of arc)\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eAnimal test for children (400 to 100 seconds of arc)\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eTest includes:\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e1 pair of Standard 3-D Viewers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003eAnswer key on back cover\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003eCleaning\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" class=\"MsoNormal\"\u003eFor stereotests and 3-D viewers\/glasses, clean and disinfect the surface area gently with disinfectant wipes or a soft, slightly damp, and lint-free cloth with 70% isopropryl alcohol. Never spray alcohol directly on the surfaces.\u003c\/p\u003e","brand":"Good-Lite","offers":[{"title":"Default Title","offer_id":42178634678377,"sku":"100500-02","price":231.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0282\/4578\/6729\/files\/good-lite-examination-tools-stereo-optical-stereo-butterfly-test-100500-02-1171897362.jpg?v=1749261827","url":"https:\/\/store.good-lite.com\/products\/stereo-optical-stereo-butterfly-test","provider":"Good-Lite Co","version":"1.0","type":"link"}