• SN EN ISO 19980 : 2012

    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

    OPHTHALMIC INSTRUMENTS - CORNEAL TOPOGRAPHERS (ISO 19980:2012)

    Available format(s): 

    Withdrawn date:  01-08-2021

    Language(s): 

    Published date:  12-01-2013

    Publisher:  Swiss Standards

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

    Foreword
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Requirements
      4.1 Area measured
      4.2 Measurement sample density
      4.3 Measurement and report of performance
      4.4 Colour presentation of results
    5 Test methods and test devices
      5.1 Tests
      5.2 Test surfaces
      5.3 Data collection, test surfaces
      5.4 Analysis of the data
    6 Accompanying documents
    7 Marking
    Annex A (informative) Test surfaces for corneal
                          topographers
    Annex B (normative) Standardized displays for corneal
                        topographers
    Annex C (normative) Calculation of area-weighting values
    Annex D (normative) Test methods for measuring human corneas
    Bibliography

    Abstract - (Show below) - (Hide below)

    Describes the instruments, systems and methods that are intended to measure the surface shape of the cornea of the human eye.

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

    Document Type Standard
    Publisher Swiss Standards
    Status Withdrawn
    Superseded By
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