MODELING THE POWER OF THE AGING HUMAN EYE

G SMITH, DA ATCHISON, BK PIERSCIONEK

    Research output: Contribution to journalArticle

    115 Citations (Scopus)

    Abstract

    A hypothesis is presented that may explain why the aging eye does not become myopic with age. The power of the eye lens is predicted with a modeling approach to determine how the form of the refractive-index gradient within the lens can change to maintain a constant power in spite of age-related curvature increase. Methods used include published age-dependent data on the optical parameters of the eye, a mathematical model of the lens based on elliptical isoindicial contours, and a refractive-index profile that can be expressed as a power series in the distance from the lens center. The kinds of change in profile required to prevent the eye from becoming myopic as its lens grows are shown.
    Original languageEnglish
    Pages (from-to)2111-2117
    JournalJOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
    Volume9
    Issue number12
    Publication statusPublished - Dec 1992

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