http://www.flashcardexchange.com/tag/snellen www.flashcardexchange.com: snellen Flashcards en-us Mon, 28 May 2012 03:54:05 PDT Mon, 28 May 2012 03:54:05 PDT support@flashcardexchange.com 720 http://www.flashcardexchange.com/flashcards/view/688366 Defining what vision is, different methods of testing, and how to accurately determine a patient's visual acuity. 2008-10-28 http://www.flashcardexchange.com/flashcards/view/688366