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Waveform distortion patterns for six subjects with (top row) both 20/13 visual acuity, (middle row) 20/20 and 20/25, and (bottom row) 20/50 and 20/800 (conical cornea) visual acuity. Diagram of top right and that immediately below it are for same eye with and without contact lenses. See page 580. [Bradford Howland and Howard C. Howland, Cornell University, Ithaca, New York]


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Science. ISSN 0036-8075 (print), 1095-9203 (online)