alexa New visual acuity charts for clinical research.
Ophthalmology

Ophthalmology

Journal of Clinical & Experimental Ophthalmology

Author(s): Ferris FL rd, Kassoff A, Bresnick GH, Bailey I

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Abstract Three new visual acuity charts facilitate quantitative use of visual acuity test results. The charts have high-contrast lettering on washable white polystyrene. Each line has five Sloan letters; the lines are of equal difficulty and there is a geometric progression in letter size from line to line. This provides a similar task for each line on the chart with the letter size being the only variable. Charts with different letter sequences are used for testing right and left eyes.
This article was published in Am J Ophthalmol and referenced in Journal of Clinical & Experimental Ophthalmology

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