Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Eye prosthesis – Intraocular lens
Patent
1989-08-21
1990-09-11
Frinks, Ronald
Prosthesis (i.e., artificial body members), parts thereof, or ai
Eye prosthesis
Intraocular lens
A61F 216
Patent
active
049559044
ABSTRACT:
A masked intraocular lens for implantation into a human eye is presented. The mask, which blocks only part of the lens body, together with the pupil of the eye, defines a small aperture in the eye when the pupil is constricted, thereby increasing the depth of focus, as a pinhole camera does. When the pupil of the eye is dilated, additional light is allowed to pass through the pupil around the mask and to reach the retina to allow a person to see in dimmer light conditions. In one embodiment, the mask defines a small circular aperture and a larger exterior annulus; the small circular aperture has an additional power intermediate between that needed for distance and close vision. Also provided is a method for treating a patient with cataracts comprising replacing the patient's lens with the lens of the invention.
REFERENCES:
patent: 4409641 (1983-10-01), Levy
patent: 4605409 (1986-08-01), Kelman
patent: 4636211 (1987-01-01), Nielsen et al.
patent: 4676791 (1987-06-01), LeMaster et al.
patent: 4813955 (1989-03-01), Achatz et al.
"Implants With Coloured and Opaque Portions: Implants with Built-In Stenopaeic Aperture", Intra-Ocular Lenses and Implants, by Choyce (Book) H. K. Lewis, London, 1964, 623-6, pp. 21-26.
Miller et al., Ann. Ophthalmol., (1986) 18:212-215.
Miller and Johnson, Perspectives in Refraction, Rubin, ed., (1977) 21:347-350.
Phillips et al., J. Cataract Refract Surg, (1988) 14:129-135.
Apple et al., J. Cataract refract Surg, (1986) 12:358-362.
Park et al., J. Cataract Refract Surg., (1986) 12:363-366.
De Carle, Review of Contact Lenses, Ruben, ed., pp. 571-591.
Atebara Neal
Miller David
Frinks Ronald
The Beth Israel Hospital Association
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