Paradoxical optical power increase of a deformable lens by equatorial stretching

    Authors

    R. A. Schachar; D. P. Cudmore; T. D. Black; J. C. Wyant; V. W. Shung; T. Huang; R. T. McKinney;J. P. Rolland

    Comments

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    Abbreviated Journal Title

    Ann. Ophthalmol. Glaucoma

    Keywords

    Ophthalmology

    Abstract

    Yertical scanning interference microscope measurements of the mean radius of curvature (ROC) of bath surfaces of constant-volume deformable, water-filled lenses were obtained before and during small displacement stepped equatorial stretching in the plane perpendicular to the optical axis, Each lens demonstrated a marked decrease of the ROC at its optical center: However: the ROC increased in a region halfway between the center and the outer diameter of the lens, This is indicative of central steepening with peripheral flattening This is contrary to the assumption that stretching of the equator of a deformable lens will only reduce its optical power.

    Journal Title

    Annals of Ophthalmology & Glaucoma

    Volume

    30

    Issue/Number

    1

    Publication Date

    1-1-1998

    Document Type

    Article

    Language

    English

    First Page

    10

    Last Page

    18

    WOS Identifier

    WOS:000072519400007

    ISSN

    1079-4794

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