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ISO 8596:2009
ISO 8596:2009 Ophthalmic optics - Visual acuity testing - Standard optotype and its presentation
standard by International Organization for Standardization, 07/01/2009
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M00046702
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Full Description
ISO 8596:2009 specifies a range of Landolt ring optotypes and describes a method for measuring distance visual acuity under daylight conditions for the purposes of certification or licensing.
It is neither intended as a standard for clinical measurements nor for the certification of blindness or partial sight.
