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ISO 19980:2021

Ophthalmic instruments — Corneal topographers

Jun 1, 2021

General information

90.92     Mar 27, 2025

ISO

ISO/TC 172/SC 7

International Standard

11.040.70  

English   French  

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Published

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Scope

This document specifies minimum requirements for instruments and systems that fall into the class of corneal topographers (CTs). It also specifies tests and procedures to verify that a system or instrument complies with this document and thus qualifies as a CT according to this document. It also specifies tests and procedures that allow the verification of capabilities of systems that are beyond the minimum requirements for CTs.
This document defines terms that are specific to the characterization of the corneal shape so that they may be standardized throughout the field of vision care.
This document is applicable to instruments, systems and methods that are intended to measure the surface shape of the cornea of the human eye.
NOTE      The measurements can be of the curvature of the surface in local areas, three-dimensional topographical measurements of the surface or other more global parameters used to characterize the surface.
This document is not applicable to ophthalmic instruments classified as ophthalmometers.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 19980:2012

NOW

PUBLISHED
ISO 19980:2021
90.92 Standard to be revised
Mar 27, 2025

REVISED BY

IN_DEVELOPMENT
ISO/AWI 19980