Ophthalmic optics - Visual acuity testing -- Standard and clinical optotypes and their presentation
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English Hardcopy
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Number of Standard:
CSN EN ISO 8596
Category:
195002
Pages:
24
Released:
01.07.2018
Catalog number:
504722
DESCRIPTION
CSN EN ISO 8596
CSN EN ISO 8596 This document specifies a range of Landolt ring optotypes and describes a method for measuring distance visual acuity under photopic conditions for the purposes of certification or licensing.This document is neither intended as a standard for clinical measurements nor for the certification of blindness or partial sight.Other optotypes used for clinical investigations are described in Annex A for information. Original English text of CSN EN Standard. The price of the Standard included all amendments and correcturs.