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01-03-2007 | Original Article

Optical properties of ocular tissues in the near infrared region

Authors: Dhiraj K. Sardar, Guang-Yin Swanland, Raylon M. Yow, Robert J. Thomas, Andrew T. C. Tsin

Published in: Lasers in Medical Science | Issue 1/2007

Abstract

Near infrared characterization of optical properties of aqueous humor and vitreous humor 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 (R _d) and total transmission (T _t) measurements had been taken for individual ocular tissue by using a double-integrating sphere setup and infrared laser diodes. The inverse adding doubling (IAD) computational method based on the diffusion approximation and radiative transport theory was applied to the measured values of n, R _d, and T _t 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 IAD method program and a Monte Carlo simulation of light–tissue interaction until the minimum difference in experimental and computed value for T _t was realized. A comparison between the optical characterization of human and bovine ocular samples was also made.

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Title: Optical properties of ocular tissues in the near infrared region
Authors: Dhiraj K. Sardar
Guang-Yin Swanland
Raylon M. Yow
Robert J. Thomas
Andrew T. C. Tsin
Publication date: 01-03-2007
Publisher: Springer-Verlag
Published in: Lasers in Medical Science / Issue 1/2007
Print ISSN: 0268-8921
Electronic ISSN: 1435-604X
DOI: https://doi.org/10.1007/s10103-006-0421-y

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Optical properties of ocular tissues in the near infrared region

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