Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Patent
1993-09-09
1996-03-26
Sugarman, Scott J.
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Ophthalmic lenses or blanks
351161, 351177, G02C 704
Patent
active
055025188
ABSTRACT:
A contact lens for use on a patient's eye with an asymmetric aspheric cornea, the lens having an anterior surface, a posterior surface and a base, the posterior surface having a peripheral portion which is asymmetric and aspherical and at least coextensive with the base of the lens. The peripheral portion asymmetrically and aspherically matching a corresponding peripheral portion of the cornea which lies under the peripheral portion of the lens when the lens is worn in the patient's eye. The contact lens is not substantially greater in diameter than said cornea. The process for manufacturing the lens uses three-dimensional topographic data (including elevation data) from a multiplicity of points on the cornea. The data is used to shape at least the peripheral portion of the posterior surface of the lens to cause it to conform to and/or match the corresponding surface of the cornea.
REFERENCES:
patent: 2264080 (1941-11-01), Hunter
patent: 3079737 (1963-03-01), Kratt et al.
patent: 4194814 (1980-03-01), Fischer et al.
patent: 4273734 (1981-06-01), Seiderman
patent: 4346482 (1982-08-01), Tennant et al.
patent: 4408845 (1983-10-01), Seiderman
patent: 4525043 (1985-06-01), Bronstein
patent: 4563565 (1986-01-01), Kampfer et al.
patent: 4569576 (1986-02-01), Karpov et al.
patent: 4580882 (1986-04-01), Nuchman et al.
patent: 4640595 (1987-02-01), Volk
patent: 4665913 (1987-05-01), L'Esperance, Jr.
patent: 4665914 (1987-05-01), Tanne
patent: 4676790 (1987-06-01), Kern
patent: 4680998 (1987-07-01), Council, Jr.
patent: 4715858 (1987-12-01), Lindstrom
patent: 4861152 (1989-08-01), Vinzia
patent: 4863260 (1989-09-01), Gersten et al.
patent: 4883350 (1989-11-01), Muckenhirn
patent: 4884482 (1989-12-01), Council, Jr.
patent: 4923467 (1990-05-01), Thompson
patent: 4947715 (1990-08-01), Council, Jr.
patent: 4995300 (1991-02-01), Kaplan et al.
patent: 5019097 (1991-04-01), Knight et al.
patent: 5019098 (1991-05-01), Mercier
patent: 5062701 (1991-11-01), Drazba et al.
patent: 5104408 (1992-04-01), Thompson
patent: 5110200 (1992-05-01), Snook
patent: 5114628 (1992-05-01), Ho/ fer et al.
patent: 5152786 (1992-10-01), Hanna
patent: 5156622 (1992-10-01), Thompson
patent: 5163956 (1992-11-01), Liu et al.
patent: 5170191 (1992-12-01), Jones
patent: 5173723 (1992-12-01), Volk
patent: 5198844 (1993-03-01), Roffman et al.
patent: 5214453 (1993-05-01), Giovanzana
Success by Design Not by Chance, CLMA 34th Annual Meeting & Exposition, dated Oct. 19, 20 and 21, 1995 Innisbrook Hilton Resort, Tarpon Springs, Florida, Registration Brochure.
"Corneal Topography and Contact Lenses Is There a 'Fit"; By: Michael L. Gilbert, M. D. Spring, 1993.
Autorefractor/Keratometers; By: Stephanie Kloos Donoghue, Spring 1993; Eyecare Technology.
DAC Three Axis Iol Air Bearing Mill DLM Series II, Aug. 1993.
Osterweil, Aspheric Lenses Offer Improved Function, Comfort; Calculating Appropraite Aspheres Technology Reduces Pressure, Ophthalmology Times, Nov. 1, 1992, pp. 82-83.
Tailor-made contact lenses reach UK, Clinica 425, p. 15, Oct. 31, 1990.
Osterweil, Corneal, Mapping May Become Standard for Measuring Corneas, Ophthalmology Times, Sep. 15, 1992, p. 1.
Corneal Modeling Aids Contact Lens Fitting for Keratoconus, Ophthalmology Times, Jul. 15, 1990, p. 8.
Contact Lenses--Advances in Design, Fitting, Applications (1974) Edited by Joseph W. Soper, pp. 171-173.
Corneal Contact Lenses by Members of the Contact Lens Section, Dept. of Opthalomogy, Baylor College of Medicine, Houston, Texas, Edited by Louis J. Girard (1970) (V. Mosby Co.) pp. 275-280 and p. 6.
Contact Llensez; Anthony J. Phillips, Janet Stone, 3rd Ed., 1989 (Butterworth) pp. 838-841 and pp. 79 and 80.
Contact Lenses in Opthalmology, Michael S. Wilson, Eliszabeth A. W. Millis, 1988 (Butterworth), pp. 88-91 and pp. 15 and 16.
Contact Lens Correction, Norman Bier, and Gerald E. Lowther, Reprinted 1980 (Butterworth) p. 87.
Review of Ophthalmology; A Chilton Publication; pp. 33-36; Dec. 1994.
European Journal of Implant and Refractive Surgery; vol. 6, No. 5, pp. 286-297; Oct. 1994.
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