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CEN
EN ISO 8597 : 1996

EN ISO 8597 : 1996

Withdrawn

Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

OPTICS AND OPTICAL INSTRUMENTS - VISUAL ACUITY TESTING - METHOD OF CORRELATING OPTOTYPES

Withdrawn date

23-07-2013

Published date

12-01-2013

Publisher

Comite Europeen de Normalisation

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Foreword
1 Scope
2 Normative reference
3 General requirements for optotypes
4 Correlation of optotypes
5 Assignment of an acuity score
6 Assessing the equivalence of two kinds of optotypes
7 Significance of the difference between the two averages
Annex ZA (normative) Normative references to international
                     publications with their corresponding
                     European publications

Gives a method of correlation between a given set of optotypes and the standard optotype (Landolt ring) specified by ISO 8596.

Committee
TC 170
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Withdrawn

EN 13503-7 : 2001 OPHTHALMIC IMPLANTS - INTRAOCULAR LENSES - PART 7: CLINICAL INVESTIGATIONS
BS EN 13503-7:2002 Ophthalmic implants. Intraocular lenses Clinical investigations

ISO 8596:2009 Ophthalmic optics Visual acuity testing Standard optotype and its presentation

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