BS EN ISO 18369-3:2017

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 using the Moire
        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

Defines the methods for measuring the physical and optical properties of contact lenses 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.

This document specifies the methods for measuring the physical and optical properties of contact lenses specified in ISO18369‑2 , i.e. radius of curvature, label back vertex power, diameter, thickness, inspection of edges, inclusions and surface imperfections and determination of spectral transmittance. This document also specifies the equilibrating solution, i.e. standard saline solution, for testing of contact lenses.