• I.S. EN ISO 24157:2008&A1:2020

    Current The latest, up-to-date edition.

    Ophthalmic optics and instruments - Reporting aberrations of the human eye - Amendment 1 (ISO 24157:2008/Amd 1:2020)

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  08-03-2020

    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 references
    3 Terms and definitions
    4 Coordinate system
    5 Representation of wavefront data
    6 Presentation of data representing the aberrations of the human eye
    Annex A (informative) Methods of generating Zernike coefficients
    Annex B (informative) Conversion of Zernike coefficients to account for differing aperture sizes, decentration and coordinate system rotation
    Annex C (informative) Conversion between Zernike coefficients represented in different systems of notation
    Annex D (informative) Computer algorithm to generate partial derivative weighting matrices for un-normalized Zernike polynomial functions
    Annex E (informative) Table of normalized Zernike polynomial functions (to 6th radial order)
    Bibliography

    Abstract - (Show below) - (Hide below)

    This International Standard specifies standardized methods for reporting aberrations of the human eye.

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

    Committee ISO/TC 172
    Document Type Standard
    Product Note The date of any NSAI previous adoption may not match the date of its original CEN/CENELEC document.
    Publisher National Standards Authority of Ireland
    Status Current
    Supersedes
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