ISO 7921:2024Published

Ophthalmic optics and instruments — Near reading charts

Optique et instruments ophtalmiques — Tableaux d’optotypes utilisés pour la mesure de l’acuité de lecture en vision de près

Abstract / scope

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.