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I.S. EN ISO 18369-3:2017&LC:2018

Current

Current

The latest, up-to-date edition.

Ophthalmic optics - Contact lenses - Part 3: Measurement methods (ISO 18369-3:2017, Corrected version 2017-10- 01)

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

02-14-2018

Preview

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Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Methods of measurement for contact lenses
5 Test report
Annex A (informative) Measurement of rigid contact lens curvature using interferometry
Annex B (informative) Measurement of label back vertex power of soft contact lenses immersed in saline solution using the Moiré deflectometer or Hartmann methods
Annex C (informative) Measurement of the radius of curvature of contact lenses using the ophthalmometer
Annex D (informative) Paddle support for focimeters used for power measurements of contact lenses
Bibliography

This document specifies the methods for measuring the physical and optical properties of contactlenses specified in ISO 18369-2, i.e. radius of curvature, label back vertex power, diameter, thickness, inspection of edges, inclusions and surface imperfections and determination of spectral transmittance.

Committee
ISO/TC 172
DocumentType
Standard
Pages
58
ProductNote
The date of any NSAI previous adoption may not match the date of its original CEN/CENELEC document.
PublisherName
National Standards Authority of Ireland
Status
Current
Supersedes

Standards Relationship
EN ISO 18369-3:2017 Identical
ISO 18369-3:2017 Identical

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