Journal
BIOMEDICAL OPTICS EXPRESS
Volume 2, Issue 5, Pages 1275-1281Publisher
OPTICAL SOC AMER
DOI: 10.1364/BOE.2.001275
Keywords
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Funding
- NIH SBIR [2R44RR024070-02A1]
- Department of Defense STTR [W81XWH-08-C-0109]
- NIH [1R21EY019752-01, 2P30EY008126-22]
- Research to Prevent Blindness, Inc., NY
- Joseph Ellis Family Research Fund
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Prior work with free-electron lasers (FELs) showed that wavelengths in the 6- to 7-mu m range could ablate soft tissues efficiently with little collateral damage; however, FELs proved too costly and too complex for widespread surgical use. Several alternative 6- to 7-mu m laser systems have demonstrated the ability to cut soft tissues cleanly, but at rates that were much too low for surgical applications. Here, we present initial results with a Raman-shifted, pulsed alexandrite laser that is tunable from 6 to 7 mu m and cuts soft tissues cleanly-approximately 15 mu m of thermal damage surrounding ablation craters in cornea-and does so with volumetric ablation rates of 2-5 x 10(-3) mm(3)/s. These rates are comparable to those attained in prior successful surgical trials using the FEL for optic nerve sheath fenestration. (C) 2011 Optical Society of America
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