Process and apparatus for changing the curvature of the cornea

Details Process and apparatus for changing the curvature of the cornea Process and apparatus for changing the curvature of the cornea

1997-01-02

2000-03-14

Dvorak, Linda C. M.

Surgery

Instruments

Light application

606 16, A61B 1736

Patent

active

060366834

ABSTRACT:
A process is described for changing the curvature of the cornea in which the light of a light source is focused in the cornea with a wavelength of approximately 1.5 .mu.m to 6 .mu.m so that the collagenic tissue shrinks selectively. The invention is characterized in that the light is applied continuously at such a power that, although a temperature is reached which leads to irreversible coagulations of the collagenic tissue, the temperature within the coagulated region rises to values at which there is not yet a relaxation of the tissue.

REFERENCES:
patent: 5071417 (1991-12-01), Sinofsky
patent: 5112328 (1992-05-01), Taboada et al.
patent: 5304169 (1994-04-01), Sand
patent: 5484432 (1996-01-01), Sand
patent: 5520679 (1996-05-01), Lin
patent: 5549632 (1996-08-01), Lai

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