Simulation of the temperature increase in human cadaver retina during direct illumination by 150-kHz femtosecond laser pulses

Hui Sun; Nora Hosszufalusi; Tibor Juhasz; Eric R. Mikula

doi:10.1117/1.3631788

1 October 2011 Simulation of the temperature increase in human cadaver retina during direct illumination by 150-kHz femtosecond laser pulses

Hui Sun, Nora Hosszufalusi, Tibor Juhasz, Eric R. Mikula

Author Affiliations +

Journal of Biomedical Optics, Vol. 16, Issue 10, 108001 (October 2011). https://doi.org/10.1117/1.3631788

Abstract

We have developed a two-dimensional computer model to predict the temperature increase of the retina during femtosecond corneal laser flap cutting. Simulating a typical clinical setting for 150-kHz iFS advanced femtosecond laser (0.8- to 1-μJ laser pulse energy and 15-s procedure time at a laser wavelength of 1053 nm), the temperature increase is 0.2°C. Calculated temperature profiles show good agreement with data obtained from ex vivo experiments using human cadaver retina. Simulation results obtained for different commercial femtosecond lasers indicate that during the laser in situ keratomileusis procedure the temperature increase of the retina is insufficient to induce damage.

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Hui Sun, Nora Hosszufalusi, Tibor Juhasz, and Eric R. Mikula "Simulation of the temperature increase in human cadaver retina during direct illumination by 150-kHz femtosecond laser pulses," Journal of Biomedical Optics 16(10), 108001 (1 October 2011). https://doi.org/10.1117/1.3631788

Published: 1 October 2011

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KEYWORDS

Retina

Femtosecond phenomena

Optical simulations

Laser energy

Pulsed laser operation

Laser vision correction

Temperature metrology

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