Ophthalmic optics - Visual acuity testing -- Standard and clinical optotypes and their presentation
NORM herausgegeben am 1.7.2018
Bezeichnung normen: ČSN EN ISO 8596
Zeichen: 195002
Katalog-Nummer: 504722
Ausgabedatum normen: 1.7.2018
Zahl der Seiten: 24
Gewicht ca.: 72 g (0.16 Pfund)
Land: Tschechische technische Norm
Kategorie: Technische Normen ČSN
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