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CEN - EN ISO 19980

Ophthalmic instruments - Corneal topographers

active, Most Current
Organization: CEN
Publication Date: 1 April 2012
Status: active
Page Count: 30
ICS Code (Ophthalmic equipment): 11.040.70
scope:

This International Standard 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 International Standard and thus qualifies as a CT according to this International Standard. It also specifies tests and procedures that allow the verification of capabilities of systems that are beyond the minimum requirements for CTs.

This International Standard 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 International Standard 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.

It is not applicable to ophthalmic instruments classified as ophthalmometers.

Document History

EN ISO 19980
April 1, 2012
Ophthalmic instruments - Corneal topographers
This International Standard 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...
August 1, 2005
Ophthalmic instruments - Corneal topographers
A description is not available for this item.

References

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