Intraocular lens

Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Eye prosthesis – Intraocular lens

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A61F 416, A61C 124

Patent

active

045626006

ABSTRACT:
An intraocular lens for implantation in the posterior chamber of a human eye following extracapsular cataract extraction comprises a lens body which includes a lens optic having a central axis, and a circumferential flange extending posteriorly and radially outward from the edge of the lens optic at an oblique angle with respect to the central axis of the lens optic. Resilient means are provided for supporting the lens body within the posterior chamber of the eye and for exerting posterior pressure on the lens body to urge the circumferential flange into contact with the posterior capsule. The angulated flange causes stretching or tenting of the posterior capsule with consequent reduction of capsular wrinkling, particularly in the central area of the capsule. The flange can be made flexible in order to produce further stretching and smoothing of the central posterior capsule. Additional advantages of the circumferential flange include reduction or elimination of epithelial cell migration and fiber growth toward the central posterior capsule, creation of a space between the lens and the capsular surface to allow laser capsulotomy procedures to be carried out without damage to the lens, and separation of the anterior capsule flap from the posterior capsule.

REFERENCES:
patent: 2834023 (1958-05-01), Lieb
patent: 3866249 (1975-02-01), Flom
patent: 3906551 (1975-09-01), Otter
patent: 3913148 (1975-10-01), Potthast
patent: 3925825 (1975-12-01), Richards et al.
patent: 3971073 (1976-07-01), Richards et al.
patent: 3994027 (1976-11-01), Jensen et al.
patent: 3996626 (1976-12-01), Richards et al.
patent: 3996627 (1976-12-01), Deeg et al.
patent: 4073014 (1978-02-01), Poler
patent: 4073015 (1978-02-01), Peyman et al.
patent: 4080709 (1978-03-01), Poler
patent: 4110848 (1978-09-01), Jensen
patent: 4118808 (1978-10-01), Poler
patent: 4159546 (1979-07-01), Shearing
patent: 4190049 (1980-02-01), Hager et al.
patent: 4198714 (1980-04-01), Jensen
patent: 4244060 (1981-01-01), Hoffer
patent: 4365360 (1982-12-01), Ong
patent: 4412359 (1983-11-01), Myers
patent: 4418431 (1983-12-01), Feaster
John H. Sheets, M.D., Covered Bridge: An Update on Lens Implantation, pp. 5-13 (1977).
"The Hoffer Ridged Optic", Iolab Corporation (1982).
"Laseridge", Iolab Corporation.
"The Hoffer Ridge Lenses from CILCO", Cilco, Inc. (Mar. 1983).
"The Model 150 Pearce Vaulted Y Posterior Chamber Lens", Coburn Optical Industries, Inc. (Apr. 1983).
"The New Clayman Lightweight", Precision-Cosmet Company, Inc. (1983).
"Ridged Intraocular Lens May Lower Need for Discissions After Cataract Extraction", Ophthalmology Times, vol. 6, No. 4 (Apr. 1981).
"Planned Extracapsular Catarac Extraction and the Insertion of the Lindstrom Centrex Style 20 Posterior Chamber Lens", by Richard L. Lindstrom, (Pamphlet), pp. 1-11, Copyright 1981.
Lins Implantation 30 Years of Progress, (Book), by P. Leonard et al, Dr. W. Junk Publishers, (Printed in Belgium), 1982, pp. 300-301.
Lester Posterior Chamber Lens, (Advertisement), Intermedics Intraocular Inc., P.O. Box 70670, Pasadena, CA 91107, (2 pages), Aug. 1982.
"Ovoid Optic Posterior Chamber Intraocular Lens: The First One Hundred Cases", by H. M. Clayman, Am. Intra-Ocular Implant Soc. J., vol. 8, Fall 1982, pp. 343-345.
Model PC-80 Posterior Chamber (Knolle) Intraocular Lenses, American Medical Optics, (Advertisement brochure), 4 pages, Sep. 1982.
The Hoffer Ridge Lenses from Cilco, (Advertisement brochure), Cilco, Inc., 1616 13th Ave., Box 1680, Huntington, West Virginia, 6 pages, Mar. 1983.

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