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Proceedings Paper

Infrared measurement of thermal constants in laser-irradiated scleral tissue
Author(s): Jamie D. Rhead; Aravinda Kar; Glenn D. Boreman; Fabrice Manns; Mikio Sasoh M.D.; Jean-Marie A. Parel
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Paper Abstract

Laser scleral buckling (LSB) experiments were performed by irradiating human cadaver eyes with a focused beam from a 2.1-micrometer Ho:YAG laser. Spatially and temporally resolved temperature maps of the sclera were inferred from infrared images of the tissue's thermal radiation. An infrared focal-plane camera operating in the 3- to 5-micrometer wavelength interval was used for the measurements, from which we derived absorption and thermal diffusivity coefficients of the scleral tissue, along with the temperature dependence of these coefficients. A thermal-response model was developed, which describes the tissue surface temperature in response to a train of laser pulses, given the pulse repetition rate, beam fluence, spot size, and total energy delivered. This model provides guidance for optimization of laser-irradiation parameters for LSB treatment.

Paper Details

Date Published: 17 May 1996
PDF: 12 pages
Proc. SPIE 2673, Ophthalmic Technologies VI, (17 May 1996); doi: 10.1117/12.240200
Show Author Affiliations
Jamie D. Rhead, CREOL/Univ. of Central Florida (United States)
Aravinda Kar, CREOL/Univ. of Central Florida (United States)
Glenn D. Boreman, CREOL/Univ. of Central Florida (United States)
Fabrice Manns, Univ. of Miami School of Medicine (United States)
Mikio Sasoh M.D., Univ. of Miami School of Medicine (United States)
Jean-Marie A. Parel, Univ. of Miami School of Medicine (United States)


Published in SPIE Proceedings Vol. 2673:
Ophthalmic Technologies VI
Jean-Marie A. Parel; Karen Margaret Joos M.D.; Pascal O. Rol, Editor(s)

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