ANSI Z80.21-2010

ANSI Z80.21-2010
ANSI Z80.21-2010 English PDF Ophthalmics - Instruments - General-Purpose Clinical Visual Acuity Charts

standard published 2010 by American National Standards Institute

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Applies to all clinical visual acuity measurement systems using recognition of high contrast optotypes and which are designed for general use. It does not apply to special testing of visual acuity.

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