Eye chart smaller towards the bottom of the chart. The person removes any glasses or contact lenses, and stands or sits a standardized distance from the chart (e.g., 20 feet for the Snellen chart). The person is then asked to identify the optotypes on the chart, starting with large rows and continuing to smaller rows until the optotypes cannot be reliably identified any more. The row in which the person can reliably identify symbols defines the visual acuity. One eye is tested at a time. Practically, this is accomplished by covering the other eye with a hand, piece of paper, or a
Fight for Sight (U.S.) Society, and WomensEyeHealth.org. Fight for Sight in the U.S. is unaffiliated with the younger organizations with the same name in the UK or in Ireland. Numerous leaders in eye and vision research and academia received a Fight for Sight grant early in their careers, including Harold Scheie, MD (1950), who founded the Scheie Eye Institute at the University of Pennsylvania, Arthur Jampolsky, MD (1952), whose efforts led to the creation of the Smith-Kettlewell Eye Research Institute, A. Edward Maumenee, MD (1958) director of the Wilmer Eye Institute, founder of the Eye Bank Association of America and potent force behind the