Apparatus and method for improving eyesight

Details Apparatus and method for improving eyesight Apparatus and method for improving eyesight

1982-09-20

1986-08-26

Frinks, Ronald L.

Surgery

Truss

Perineal

128305, 623 5, A61B 1900, A61F 1732, A61F 214

Patent

active

046076174

ABSTRACT:
The invention relates to an implant made of a polysulfone plastics material and designed to be implanted between the layers of the cornea to correct eyesight defects. The implant can as act as a substitute for conventional spectacles and can additionally strengthen and shape the cornea to assist in treating corneal astigmatism and conical cornea.

REFERENCES:
patent: 2714721 (1955-08-01), Stone
patent: 3910296 (1975-10-01), Karageozian et al.
patent: 3928294 (1975-12-01), Crawford et al.
patent: 4092743 (1978-06-01), Kelman
patent: 4163609 (1979-08-01), Neefe
patent: 4257521 (1981-03-01), Poler
patent: 4285073 (1981-08-01), Szycher
Corneal Surgery, Advanced Techniques in Ophthalmic Microsurgery (Book) by Louis J. Girard, vol. two, The C. V. Mosby Co., 1981, pp. 143-149, 168-170.
Concise Guide to Biomedical Polymers (Book) by John W. Boretos, Charles C. Thomas publisher, 1973, pp. 143-144.
Lytle et al., "Wideband Optical Transmission Properties of Seven Thermoplastics", Applied Optics, vol. 18, No. 11, Jun 1, 1979.

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