ISO/NP 7921

Ophthalmic optics and instruments — Near vision charts

General information

Current stage: 10.60 Effective date: Jul 28, 2021

Originator: ISO

Owner: ISO/TC 172/SC 7

Type: International Standard

Scope

This International Standard applies to displays of high-contrast text that are designed for general near vision assessment. It does not apply to measurement systems designed for specialized testing of near visual acuity, e.g., low vision or low contrast charts or those intended for transillumination, or electronically generated systems.

Life cycle

NOW

IN_DEVELOPMENT
ISO/NP 7921
10.60 Close of voting
Jul 28, 2021

Preview

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