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Proceedings Paper

Optical properties of ocular tissues in the near infrared region
Author(s): Dhiraj K. Sardar; Raylon M. Yow; Guang-Yin Swanland; Robert J. Thomas; Andrew T. C. Tsin
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Paper Abstract

Near infrared characterization of optical properties of various tissue components of healthy human and bovine eyes has been performed. The indices of refraction (n) of these ocular tissues were determined using a Michelson interferometer. The total diffuse reflection (Rd) and total transmission (Tt) measurements have been taken for individual ocular tissue by using double-integrating spheres and infrared laser diodes. The Inverse Adding Doubling computational method based on the diffusion approximation and radiative transport theory is applied to the measured values of n, Rd, and Tt to calculate the optical absorption and scattering coefficients of the human and bovine ocular tissues. The scattering anisotropy value was determined by iteratively running the inverse adding doubling method program and a Monte Carlo simulation of light-tissue interaction until the minimum difference in experimental and computed values for Rd and Tt were realized. A comparison between the optical characterization of human and bovine ocular samples is also made.

Paper Details

Date Published: 7 March 2006
PDF: 11 pages
Proc. SPIE 6138, Ophthalmic Technologies XVI, 613815 (7 March 2006); doi: 10.1117/12.643874
Show Author Affiliations
Dhiraj K. Sardar, Univ. of Texas at San Antonio (United States)
Raylon M. Yow, Univ. of Texas at San Antonio (United States)
Guang-Yin Swanland, Univ. of Texas at San Antonio (United States)
Robert J. Thomas, Air Force Research Lab. (United States)
Andrew T. C. Tsin, Univ. of Texas at San Antonio (United States)

Published in SPIE Proceedings Vol. 6138:
Ophthalmic Technologies XVI
Fabrice Manns; Per G. Söderberg; Arthur Ho, Editor(s)

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