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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

  • Editor: Stephen A. Burns
  • Vol. 25, Iss. 1 — Jan. 1, 2008
  • pp: 250–261

Single dispersive gradient-index profile for the aging human lens

José Antonio Díaz, Carles Pizarro, and Josep Arasa  »View Author Affiliations


JOSA A, Vol. 25, Issue 1, pp. 250-261 (2008)
http://dx.doi.org/10.1364/JOSAA.25.000250


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Abstract

We provide a single gradient-index (GRIN) profile for the crystalline lens in an updated age-dependent emmetropic-eye model. The parameters defining the GRIN profile include their variation with age and the dispersion of the refractive index in order to account for the increase in the positive-wave spherical aberration, for the constant chromatic difference in the refraction of the human eye, as well as for the decrease in the retinal-image quality with aging. In accounting for these ocular properties, the results show that first, the value of the dispersion parameters are invariant with age. Second, those parameters defining the distribution of the lens index cause the lens-center-index value to decrease slightly, and its position along the lens axis changes with age. Furthermore, these findings are in agreement with the lens paradox.

© 2008 Optical Society of America

OCIS Codes
(110.2760) Imaging systems : Gradient-index lenses
(170.4460) Medical optics and biotechnology : Ophthalmic optics and devices
(330.5370) Vision, color, and visual optics : Physiological optics

ToC Category:
Vision, color, and visual optics

History
Original Manuscript: May 8, 2007
Revised Manuscript: October 23, 2007
Manuscript Accepted: November 4, 2007
Published: December 21, 2007

Virtual Issues
Vol. 3, Iss. 2 Virtual Journal for Biomedical Optics

Citation
José Antonio Díaz, Carles Pizarro, and Josep Arasa, "Single dispersive gradient-index profile for the aging human lens," J. Opt. Soc. Am. A 25, 250-261 (2008)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-25-1-250

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