Abstract

This document applies to printed, projected, and electronic displays of high-contrast text that are designed for assessment and measurement of near reading acuity under photopic conditions. The definitions and requirements of this document apply to the Latin alphabet.

Begin

2022-10-31

WI

00170310

Planned document number

DIN EN ISO 7921

Project number

02703375

Responsible national committee

NA 027-01-08-10 AK - Visual acuity and test methods  

Responsible european committee

CEN/TC 170 - Ophthalmic optics  

Responsible international committee

ISO/TC 172/SC 7/WG 6 - Ophthalmic instruments and test methods  

draft standard

Ophthalmic optics and instruments - Near vision charts (ISO/DIS 7921:2023); German and English version prEN ISO 7921:2023
2023-04
Order from DIN Media