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Proceedings Paper

NIR laser tissue welding of in vitro porcine of cornea and sclera tissue
Author(s): Richard B. Rosen M.D.; Howard E. Savage; Ramindra K. Halder; Uladzimir Kartazayeu; Tapan K. Gayen M.D.; Steven A. McCormick; Alvin Katz; Henry D. Perry; Robert R. Alfano
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Paper Abstract

In this study, an NIR fiber laser with an eye safe wavelength of 1.455 μm was used to successfully weld in vitro porcine cornea and sclera tissue. The emission wavelength overlaps an absorption band of water. The laser system was used in combination with a motorized translational system and shutter to control the laser exposure on the tissue being welded. Different welding conditions were analyzed for the porcine cornea and sclera. The welded tissues were examined using histopathology and tensile strength analysis. The NIR welding technique provides strong, full thickness welds and does not require the use of extrinsic dyes, chromophores, or solders. The NIR laser system used in this study can effectively weld cornea and sclera tissue, and this laser tissue welding (LTW) methodology typically causes minimal disruption of tissue, and thus, avoids opacities and irregularities in the tissue which may result in decreased visual acuity.

Paper Details

Date Published: 13 July 2004
PDF: 4 pages
Proc. SPIE 5312, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems XIV, (13 July 2004); doi: 10.1117/12.531019
Show Author Affiliations
Richard B. Rosen M.D., New York Eye and Ear Infirmary (United States)
Howard E. Savage, New York Eye and Ear Infirmary (United States)
City College/CUNY (United States)
Ramindra K. Halder, CUNY/City College (United States)
Uladzimir Kartazayeu, CUNY/City College (United States)
Tapan K. Gayen M.D., CUNY/City College (United States)
Steven A. McCormick, New York Eye and Ear Infirmary (United States)
Alvin Katz, CUNY/City College (United States)
Henry D. Perry, New York Eye and Ear Infirmary (United States)
Robert R. Alfano, CUNY/City College (United States)

Published in SPIE Proceedings Vol. 5312:
Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems XIV
Brian Jet-Fei Wong M.D.; Nikiforos Kollias; Kenton W. Gregory M.D.; Henry Hirschberg; Reza S. Malek M.D.; Abraham Katzir; David S. Robinson M.D.; Kenneth Eugene Bartels D.V.M.; Eugene A. Trowers M.D.; Werner T.W. de Riese; Lawrence S. Bass M.D.; Lloyd P. Tate V.D.M.; Steen J. Madsen; Keith D. Paulsen; Karen M. McNally-Heintzelman, Editor(s)

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