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Publication date

November 2017

Number of pages

49 p.

Reference

NF EN ISO 18369-3

ICS Codes

11.040.70 Ophthalmic equipment

Classification index

S11-813-3

Print number

2 - 01/05/2019

International kinship

ISO 18369-3:2017

European kinship

EN ISO 18369-3:2017

Sumary

Ophthalmic optics - Contact lenses - Part 3 : measurement methods

ISO 18369-3:2017 specifies 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 also specifies the equilibrating solution and standard saline solution for testing of contact lenses.

Replaced standards (1)

NF EN ISO 18369-3

December 2006

Standard Cancelled

Ophthalmic optics - Contact lenses - Part 3 : measurement methods

Le présent document spécifie les méthodes de mesure des propriétés optiques et physiques des lentilles de contact, telles que décrites dans l'ISO 18369-2. Il s'agit du rayon de courbure, de la puissance frontale postérieure, du diamètre, de l'épaisseur, du contrôle des bords, des inclusions, et des imperfections de surface et de la détermination du facteur spectral de transmission et du facteur de transmission. La solution saline étalon pour l'essai des lentilles de contact est également spécifiée.

Table of contents

View the extract

1 Domaine d'application
2 Références normatives
3 Termes et définitions
4 Méthodes de mesure pour les lentilles de contact
5 Rapport d'essai
Annexe A Mesurage de la courbure d'une lentille de contact rigide en utilisant l'interférométrie
Annexe B Mesure de la puissance frontale arrière déclarée des lentilles de contact souples immergées en solution saline selon la méthode au déflectomètre de Moiré ou la méthode Hartmann
Annexe C Mesurage du rayon de courbure des lentilles de contact au moyen de l'ophtalmomètre
Annexe D Support circulaire et plat à manche pour frontofocomètres utilisés dans le mesurage de puissance des lentilles de contact
Bibliographie

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