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Proceedings Paper

Simulation of the temperature increase in porcine cadaver iris during direct illumination by femtosecond laser pulses
Author(s): Hui Sun; Ronald M. Kurtz; Tibor Juhasz
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Paper Abstract

As a model for laser exposure of the iris during femtosecond corneal surgery, we simulated the temperature rise in porcine cadaver iris during direct illumination by the femtosecond laser. The temperature increase induced by a 60 kHz iFS Advanced Femtosecond Laser (AMO Inc., Santa Ana, CA) in porcine cadaver iris was simulated using COMSOL (Comsol Inc., Burlington, MA) finite element software. Temperature increases up to 2.45 °C (corresponding to 2 μJ laser pulse energy and 24 second illumination) were observed in the porcine cadaver iris from the simulation with little variation in temperature profiles compared with specimens for the same laser energy illumination in experiment. : The commercial iFS Advanced Femtosecond Laser operating with pulse energies at approximately the lower limit of the range evaluated in this study would be expected to result in a 1.23 °C temperature increase and, therefore, does not present a safety hazard to the iris.

Paper Details

Date Published: 9 February 2012
PDF: 8 pages
Proc. SPIE 8221, Optical Interactions with Tissue and Cells XXIII, 82211C (9 February 2012); doi: 10.1117/12.905279
Show Author Affiliations
Hui Sun, Alcon LenSx Inc. (United States)
Ronald M. Kurtz, Univ. of California, Irvine (United States)
Tibor Juhasz, Univ. of California, Irvine (United States)

Published in SPIE Proceedings Vol. 8221:
Optical Interactions with Tissue and Cells XXIII
E. Duco Jansen; Robert J. Thomas, Editor(s)

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