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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 8 — Apr. 11, 2011
  • pp: 7417–7438

Forward light scatter analysis of the eye in a spatially-resolved double-pass optical system

Jayoung Nam, Larry N. Thibos, Arthur Bradley, Nikole Himebaugh, and Haixia Liu  »View Author Affiliations

Optics Express, Vol. 19, Issue 8, pp. 7417-7438 (2011)

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An optical analysis is developed to separate forward light scatter of the human eye from the conventional wavefront aberrations in a double pass optical system. To quantify the separate contributions made by these micro- and macro-aberrations, respectively, to the spot image blur in the Shark-Hartmann aberrometer, we develop a metric called radial variance for spot blur. We prove an additivity property for radial variance that allows us to distinguish between spot blurs from macro-aberrations and micro-aberrations. When the method is applied to tear break-up in the human eye, we find that micro-aberrations in the second pass accounts for about 87% of the double pass image blur in the Shack-Hartmann wavefront aberrometer under our experimental conditions.

© 2011 OSA

OCIS Codes
(290.0290) Scattering : Scattering
(310.0310) Thin films : Thin films
(330.0330) Vision, color, and visual optics : Vision, color, and visual optics

ToC Category:
Vision, Color, and Visual Optics

Original Manuscript: December 10, 2010
Revised Manuscript: March 9, 2011
Manuscript Accepted: March 18, 2011
Published: April 4, 2011

Virtual Issues
Vol. 6, Iss. 5 Virtual Journal for Biomedical Optics

Jayoung Nam, Larry N. Thibos, Arthur Bradley, Nikole Himebaugh, and Haixia Liu, "Forward light scatter analysis of the eye in a spatially-resolved double-pass optical system," Opt. Express 19, 7417-7438 (2011)

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