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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 9, Iss. 12 — Dec. 1, 1992
  • pp: 2111–2117

Modeling the power of the aging human eye

George Smith, David A. Atchison, and Barbara K. Pierscionek  »View Author Affiliations


JOSA A, Vol. 9, Issue 12, pp. 2111-2117 (1992)
http://dx.doi.org/10.1364/JOSAA.9.002111


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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.

© 1992 Optical Society of America

History
Original Manuscript: September 23, 1991
Revised Manuscript: May 21, 1992
Manuscript Accepted: July 9, 1992
Published: December 1, 1992

Citation
George Smith, David A. Atchison, and Barbara K. Pierscionek, "Modeling the power of the aging human eye," J. Opt. Soc. Am. A 9, 2111-2117 (1992)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-9-12-2111

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