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    I.S. EN ISO 8597:1996

    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.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

    Available format(s):  Hardcopy, PDF

    Withdrawn date:  09-03-2006

    Language(s):  English

    Published date:  22-11-1996

    Publisher:  National Standards Authority of Ireland

    For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
    Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

    Dates of withdrawal of national standards are available from NSAI.

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    Table of Contents - (Show below) - (Hide below)

    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

    Abstract - (Show below) - (Hide below)

    Defines a method of correlation between a given set of optotypes and the standard optotype (Landolt ring) specified by IS0 8596.

    General Product Information - (Show below) - (Hide below)

    Document Type Standard
    Publisher National Standards Authority of Ireland
    Status Withdrawn

    Standards Referencing This Book - (Show below) - (Hide below)

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