ISO 7921:2024
International Standard
Current Edition
·
Approved on
09 February 2024
·
Ophthalmic optics and instruments — Near reading charts
ISO 7921:2024 Files
null Pages
Current Edition
ISO 7921:2024 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.
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