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Proceedings Paper

High-power lasers in the 1.3- to 1.4-um wavelength range: ocular effects and safety standard implications
Author(s): Joseph A. Zuclich; David J. Lund; Peter R. Edsall; Bruce E. Stuck; Gordon T. Hengst
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Paper Abstract

This manuscript details recent studies ofocular effects ofpulsed and cw laser radiation at wavelengths of I .3 15 and 1.3 1 8 ?m, and compares corneal, lens and retinal damage thresholds. The results indicate that for the exposure conditions studied, relatively minor changes in pulsewidth and/or wavelength can substantially alter threshold levels and change the tissue site(s) exhibiting the lowest damage threshold. The discussion suggests that these data may be applied to re-assess laser safety standards in the near-IR to far-IR transition-region. Also discussed are unique aspects ofthe laser-tissue interaction for these penefrating wavelengths where the incident laser radiation is relatively evenly absorbed throughout the ocular medium and the retina. In such cases of "volurnefric" absorption obsewable manifestations of laser insult may be delayed (hours to days) and may ultimately involve inflammatory responses or other disruption oftissue not directly irradiated by the laser.

Paper Details

Date Published: 17 May 2001
PDF: 11 pages
Proc. SPIE 4246, Laser and Noncoherent Light Ocular Effects: Epidemiology, Prevention, and Treatment, (17 May 2001); doi: 10.1117/12.426706
Show Author Affiliations
Joseph A. Zuclich, TASC, Inc (United States)
David J. Lund, Walter Reed Army Institute of Research (United States)
Peter R. Edsall, TASC, Inc (United States)
Bruce E. Stuck, Walter Reed Army Institute of Research (United States)
Gordon T. Hengst, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 4246:
Laser and Noncoherent Light Ocular Effects: Epidemiology, Prevention, and Treatment
Bruce E. Stuck; Michael Belkin, Editor(s)

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