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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 20 — Sep. 26, 2011
  • pp: 19265–19279

Accuracy of the reconstruction of the crystalline lens gradient index with optimization methods from Ray Tracing and Optical Coherence Tomography data

Alberto de Castro, Sergio Barbero, Sergio Ortiz, and Susana Marcos  »View Author Affiliations

Optics Express, Vol. 19, Issue 20, pp. 19265-19279 (2011)

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The accuracy of the reconstruction of the Gradient Refractive Index (GRIN) of the crystalline lens from optimization methods was evaluated. Different input data, including direction cosines of deflected rays, ray impacts obtained from ray tracing and optical path differences from Optical Coherence Tomography (OCT) were studied. Three different GRIN models were analyzed. The experimental errors of the different experimental input data were estimated from comparisons of measurements and simulations using artificial lenses of known geometries. The experimental errors in the surfaces shape measurement and the influence of the number of rays were also considered. OCT-based input data produced the most accurate GRIN reconstructions. We found that optimization methods (combining global and local search algorithms) allow GRIN reconstructions with acceptable accuracies for moderate noise level.

© 2011 OSA

OCIS Codes
(080.2710) Geometric optics : Inhomogeneous optical media
(170.4500) Medical optics and biotechnology : Optical coherence tomography
(330.0330) Vision, color, and visual optics : Vision, color, and visual optics

ToC Category:
Vision, Color, and Visual Optics

Original Manuscript: June 16, 2011
Revised Manuscript: August 6, 2011
Manuscript Accepted: August 30, 2011
Published: September 19, 2011

Alberto de Castro, Sergio Barbero, Sergio Ortiz, and Susana Marcos, "Accuracy of the reconstruction of the crystalline lens gradient index with optimization methods from Ray Tracing and Optical Coherence Tomography data," Opt. Express 19, 19265-19279 (2011)

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