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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 2, Iss. 9 — Sep. 26, 2007

Wide-field schematic eye models with gradient-index lens

Alexander V. Goncharov and Chris Dainty  »View Author Affiliations


JOSA A, Vol. 24, Issue 8, pp. 2157-2174 (2007)
http://dx.doi.org/10.1364/JOSAA.24.002157


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Abstract

We propose a wide-field schematic eye model, which provides a more realistic description of the optical system of the eye in relation to its anatomical structure. The wide-field model incorporates a gradient-index (GRIN) lens, which enables it to fulfill properties of two well-known schematic eye models, namely, Navarro’s model for off-axis aberrations and Thibos’s chromatic on-axis model (the Indiana eye). These two models are based on extensive experimental data, which makes the derived wide-field eye model also consistent with that data. A mathematical method to construct a GRIN lens with its iso-indicial contours following the optical surfaces of given asphericity is presented. The efficiency of the method is demonstrated with three variants related to different age groups. The role of the GRIN structure in relation to the lens paradox is analyzed. The wide-field model with a GRIN lens can be used as a starting design for the eye inverse problem, i.e., reconstructing the optical structure of the eye from off-axis wavefront measurements. Anatomically more accurate age-dependent optical models of the eye could ultimately help an optical designer to improve wide-field retinal imaging.

© 2007 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(080.3620) Geometric optics : Lens system design
(110.2760) Imaging systems : Gradient-index lenses
(330.4060) Vision, color, and visual optics : Vision modeling
(330.4460) Vision, color, and visual optics : Ophthalmic optics and devices

ToC Category:
Vision, Color, and Visual Optics

History
Original Manuscript: October 20, 2006
Revised Manuscript: February 18, 2007
Manuscript Accepted: March 18, 2007
Published: July 11, 2007

Virtual Issues
Vol. 2, Iss. 9 Virtual Journal for Biomedical Optics

Citation
Alexander V. Goncharov and Chris Dainty, "Wide-field schematic eye models with gradient-index lens," J. Opt. Soc. Am. A 24, 2157-2174 (2007)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=josaa-24-8-2157

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