Intraocular lenses with improved axial stability
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United States of America Patent
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-
May 8, 2001
Grant Date -
N/A
app pub date -
Nov 5, 1998
filing date -
Nov 5, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A refractive intraocular lens including an optic portion having an outer peripheral edge and three or four balanced haptic elements. Each haptic element is formed to have an inner portion and outer tip for supporting the optic portion in a patient's eye. The inner portion of each haptic element is permanently connected to the outer peripheral edge of the optic portion. Each haptic element also includes a contact plate and a transition portion, which extends between the contact plate and the inner portion. Each haptic is formed to have greater resistance to bending in a plane generally parallel to an eye's optical axis than in a plane generally perpendicular to the eye's optical axis. The intraocular lens is so designed to exhibit less than approximately 1.0 mm axial displacement of the optic portion along the eye's optical axis under a compression force suitable to effect a 1.0 mm in diameter compression of the intraocular lens. INTRAOCULAR LENSES
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