Ultraviolet laser effects on the cornea

Joseph A. Zuclich

doi:10.1117/12.17830

1 July 1990 Ultraviolet laser effects on the cornea

Joseph A. Zuclich

Proceedings Volume 1207, Laser Safety, Eyesafe Laser Systems, and Laser Eye Protection; (1990) https://doi.org/10.1117/12.17830
Event: OE/LASE '90, 1990, Los Angeles, CA, United States

Abstract

Ultraviolet radiation in the ambient environment or from artificial sources may pose both acute and chronic hazards to the skin and the ocular tissues. In general terrestrial conditions have evolved such that there are only narrow safety margins between ambient UV levels and exposure levels harmful to the human. Obvious examples of acute consequences ofUV overexposure are sunburn and snowblindness as well as analogous conditions induced by artificial sources such as the welder''s arc mercury vapor lamps and UV-emitting lasers. Further chronic UV exposure is strongly implicated as a causative agent in certain types of cataract and skin cancer. This presentation will summarize a number of specific cases where UV radiation affected the primate cornea. Data presented will include the action spectra for far- and near-UV induced ocular damage the pulsewidth and total energy dependencies of ocular thresholds studies of cumulative effects of repeated UV exposures and quantitative determinations of tissue repair or recovery rates. Depending on the exposure parameters utilized photochemical thermal or photoablative damage mechanisms may prevail. 1.

Citation Download Citation

Joseph A. Zuclich "Ultraviolet laser effects on the cornea", Proc. SPIE 1207, Laser Safety, Eyesafe Laser Systems, and Laser Eye Protection, (1 July 1990); https://doi.org/10.1117/12.17830

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