Method for improving farsightedness

Details Method for improving farsightedness Method for improving farsightedness

1987-12-03

1990-03-13

Cohen, Lee S.

Surgery

Instruments

Heat application

128399, A61B 1736

Patent

active

049075853

ABSTRACT:
The specification discloses apparatus for changing the radius of curvature of a cornea, which includes a needle (34) for being inserted into the periphery (14) of the cornea (10). A device (36, 38, 40) heats the needle (34) to a temperature sufficient to degrade a plurality of elongated regions (12) of the corneal stroma, such that the limbus of the cornea is constricted to change the radius of curvature of the cornea.

REFERENCES:
patent: 4326529 (1982-04-01), Doss et al.
patent: 4381007 (1983-04-01), Doss
patent: 4461294 (1984-07-01), Baron
patent: 4564011 (1986-01-01), Goldman
patent: 4682597 (1987-07-01), Myers
"Corneal Surgery Vol. II" by L. Gerard; The C. V. Mosby Co., St. Louis, Toronto, London 1981.
"Thermokeratoplasty (TKP) Temperature Profile" by Shaw et al, Invest. Ophthal, vol. 13, No. 3, 3/74, pp 181-186.
"Thermokeratoplasty in the Treatment of Keratoconus" by Gosset et al, Am. J. Ophthal; vol. 79, No. 2, Feb. 1975, pp. 226-232.

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