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17 May 2001 Corneal damage thresholds for multiple-pulse exposures to 2.02-μm radiation from a Tm:YAG laser
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Proceedings Volume 4246, Laser and Noncoherent Light Ocular Effects: Epidemiology, Prevention, and Treatment; (2001) https://doi.org/10.1117/12.426708
Event: BiOS 2001 The International Symposium on Biomedical Optics, 2001, San Jose, CA, United States
Abstract
Corneal epithelial damage thresholds were determined for exposures to sequences of pulses from a Tm:YAG laser (wavelength 2.02 ?m). Pulse repetition frequencies were 1, 10, 20, and 100 Hz and individual pulse durations were 0.300 sec at 1 Hz, 0.025 sec at 10 and 20 Hz, and 0.005 sec at 100 Hz. Threshold damage is correlated by an empirical power lawof the form '1th= CN?, in which '1th is the threshold irradiance and N is the number of pulses. The constant C differs depending on the pulse repetition frequency and individual pulse duration. The exponent a varies between 0.22 and 0.29. For some exposure conditions the empirical power law underestimates the damage threshold for small numbers of pulses.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Russell L. McCally and C. Brent Bargeron "Corneal damage thresholds for multiple-pulse exposures to 2.02-μm radiation from a Tm:YAG laser", Proc. SPIE 4246, Laser and Noncoherent Light Ocular Effects: Epidemiology, Prevention, and Treatment, (17 May 2001); https://doi.org/10.1117/12.426708
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