Snellen chart H, K, O, S, 3, U, Y, A, C, E, G, L, 2. The normal Snellen chart is printed with eleven lines of block letters. The first line consists of one very large letter, which may be one of several letters, for example E, H, or N. Subsequent rows have increasing numbers of letters that decrease in size. A person taking the test covers one eye from 6 metres or 20 feet away, and reads aloud the letters of each row, beginning at the top. The smallest row that can be read accurately indicates the visual acuity in that specific
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