Reduced glare intraocular lens
AssigneeAbbott Medical Optics Inc.
InventorsHuawei Zhao, David A. Ruddocks
Life of this patent
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Abstract
An intraocular lens for reducing aberrant optical effects includes a substantially oval, elliptical, or rectangular optic with an anterior surface, a posterior surface and a peripheral region/zone disposed about a central optical axis and a plurality of haptics coupled to the optic. The peripheral region/zone has an inflection region/transition area that is inclined with respect to the anterior surface at an angle between about 40 degrees and 120 degrees with respect to the optical axis. The thickness at the edge of the IOL is less than or about 0.03 mm.
Claims32
A intraocular lens comprising:
- an optic and a plurality of haptics coupled to the optic wherein the optic comprises:
- an anterior optical surface extending peripherally from a central optical axis of the intraocular lens;
- a posterior optical surface extending peripherally from the central optical axis;
- and
- a peripheral zone disposed about and extending laterally from the anterior optical surface, the peripheral zone being inclined posteriorly from the anterior optical surface;
- wherein the extent of the posterior incline of the peripheral zone is sufficient to prevent aberrant optical effects from high angle optical rays directed posteriorly toward the intraocular lens and refracted by the anterior surface.
The intraocular lens of claim 20, wherein the height of the optic is in the range of about 7 mm to 8 mm.
A dysphotopsia reducing intraocular lens comprising:
- an optic and a plurality of haptics coupled to the optic wherein the optic comprises:
- an optic configured for implantation in the eye of a patient, the optic having anterior surface and posterior surfaces intersected by an optical axis, the anterior and posterior surfaces being joined by a transition area disposed about the optical axis,
- wherein the transition area inclines posteriorly from the anterior surface and intersects the anterior surface at an angle greater than approximately 55 degrees with respect to the optical axis.
Dependencies are inferred from the claim text.