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. 1978 May;55(5):348-51.
doi: 10.1097/00006324-197805000-00008.

Applying new design principles to the construction of an illiterate E chart

H R Taylor

Applying new design principles to the construction of an illiterate E chart

H R Taylor. Am J Optom Physiol Opt. 1978 May.

Abstract

New design principles have been applied to the construction of an illiterate E chart. A chart can thus be produced in which the only variable in the visual acuity task for letters of different size is the letter size itself. A simple method for using this chart in field studies is described.

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