Model predictions of ocular injury from 1315-nm laser light

Garrett D Polhamus; Joseph A. Zuclich; Clarence P. Cain; Robert J. Thomas; Michael Foltz

doi:10.1117/12.476894

20 June 2003 Model predictions of ocular injury from 1315-nm laser light

Garrett D Polhamus, Joseph A. Zuclich, Clarence P. Cain, Robert J. Thomas, Michael Foltz

Proceedings Volume 4953, Laser and Noncoherent Light Ocular Effects: Epidemiology, Prevention, and Treatment III; (2003) https://doi.org/10.1117/12.476894
Event: Biomedical Optics, 2003, San Jose, CA, United States

Abstract

With the advent of future weapons systems that employ high energy lasers, the 1315 nm wavelength will present a new laser safety hazard to the armed forces. Experiments in non-human primates using this wavelength have demonstrated a range of ocular injuries, including corneal, lenticular and retinal lesions, as a function of pulse duration and spot size at the cornea. To improve our understanding of this phenomena, there is a need for a mathematical model that properly predicts these injuries and their dependence on appropriate exposure parameters. This paper describes the use of a finite difference model of laser thermal injury in the cornea and retina. The model was originally developed for use with shorter wavelength laser irradiation, and as such, requires estimation of several key parameters used in the computations. The predictions from the model are compared to the experimental data, and conclusions are drawn regarding the ability of the model to properly follow the published observations at this wavelength.

Citation Download Citation

Garrett D Polhamus, Joseph A. Zuclich, Clarence P. Cain, Robert J. Thomas, and Michael Foltz "Model predictions of ocular injury from 1315-nm laser light", Proc. SPIE 4953, Laser and Noncoherent Light Ocular Effects: Epidemiology, Prevention, and Treatment III, (20 June 2003); https://doi.org/10.1117/12.476894

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