Quantitation of corneal ablation by ultraviolet laser light

Journal Article · Thu Oct 31 23:00:00 EST 1985 · Arch. Ophthalmol. (Chicago); (United States)

DOI:https://doi.org/10.1001/archopht.1985.01050110137042· OSTI ID:6185032

Krueger, R R; Trokel, S L

A surgical role has been suggested for the excimer laser. This followed the discovery of precision etching of biological materials by the laser's ultraviolet emissions. In studying the amount of tissue removed as the laser energy density (irradiance) was varied, the authors found significant differences for the 193-, 249-, and 308-nm laser emission lines. The most efficient cutting irradiance for each pulse appeared to be about 200 millijoules/sq cm for 193 nm, 1,000 millijoules/sq cm for 249 nm, and 1,500 millijoules/sq cm for 308 nm. The flat slope of the etch depth curve for 193 nm suggests it will be a stable frequency when used clinically.

• Research Organization: College of Physicians and Surgeons, New York, NY
• OSTI ID: 6185032
• Journal Information: Arch. Ophthalmol. (Chicago); (United States), Journal Name: Arch. Ophthalmol. (Chicago); (United States) Vol. 11; ISSN AROPA
• Country of Publication: United States
• Language: English

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