Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Patent
1997-04-07
1999-07-27
Epps, Georgia
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Ophthalmic lenses or blanks
351177, G02C 704, G02C 702
Patent
active
059299681
ABSTRACT:
A contact lens is formed of rigid gas permeable material and covers the cornea and a small adjacent portion of the sclera of an eye. The posterior surface of the lens has a radially outer portion that generally conforms with the shape of the ocular surface in the scleral region. The posterior surface of the lens covering the corneal region of the eye is selectively spaced from, aligned with, or in eyelid bearing pressure contact with, the corneal region of the eye, whereby the eyelid bearing pressure is controllably distributed over both the scleral and corneal regions of the eye. The contact lens is comfortable to wear, not prone to unintended dislodgement during periods of physical activity, and can be worn after surgical treatment of the cornea and is thinner and much smaller than previous scleral contact lenses.
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Arons et al., "The Mueller-Welt Legacy," Contact Lens Spectrum, Jul. 1987, pp. 8-20.
Cotie Robert L.
Hirshberg Alan
Epps Georgia
Schwartz Jordan M.
LandOfFree
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