Surgery – Instruments – Light application
Patent
1996-01-11
1997-02-18
Sykes, Angela D.
Surgery
Instruments
Light application
A61B 1700, A61N 506
Patent
active
056037090
ABSTRACT:
Laser energy is used to remove all the epithelium from a defined treatment zone on the surface of the cornea by focusing a laser beam on the epithelium and monitoring the vapor produced by ablation of the epithelium. The stroma is then sculpted to provide the desired refractive correction by dividing the ablation zone into a set of sub-zones and applying laser energy to each sub-zone in sufficient intensity for predetermined times to remove and reshape the surface of the stroma.
REFERENCES:
patent: 4732148 (1988-03-01), L'Esperance, Jr.
patent: 4941093 (1990-07-01), Marshall et al.
patent: 5279298 (1994-01-01), Flower
patent: 5395356 (1995-03-01), King et al.
patent: 5505723 (1996-04-01), Muller
patent: 5505724 (1996-04-01), Steinert
Harris-Ogugua Sonya
Kanz Jack A.
Sykes Angela D.
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