Multi-zonal monofocal intraocular lens for correcting optical aberrations
AssigneeAdvanced Medical Optics, Inc.
InventorsAlan J. Lang, Huawei Zhao
Life of this patent
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Abstract
A multi-zonal monofocal opthalmic lens comprises an inner zone, an intermediate zone, and an outer zone. The inner zone has a first optical power. The intermediate zone surrounds the inner zone and has a second optical power that is different from the first power by a magnitude that is less than at least about 0.75 Diopter. The outer zone surrounds the intermediate zone and has a third optical power different from the second optical power. In certain embodiments, the third optical power is equal to the first optical power.
Claims24
A multi-zonal monofocal opthalmic lens comprising:
- a inner zone having a first optical power;
- a intermediate zone surrounding the inner zone and having a second optical power that is different from the first power by a magnitude that is less than at least about 0.75 Diopter;
- and
- a outer zone surrounding the intermediate zone having a third optical power different from the second optical power.
A multi-zonal monofocal intraocular lens having an optic with a plurality of discrete concentric optical zones centered on the optical axis, the zones adapted to focus incoming light rays to form an image from an object, comprising:
- an inner zone overlapping the optical axis of the lens for producing an image when the intraocular lens is centered on the optical axis of the human eye;
- and
- a first surrounding zone concentric about the inner zone and adapted to compensate for optical aberrations in the image resulting from implanted intraocular lens decentration of greater than at least about 0.1 mm.
A method of designing a multi-zonal monofocal opthalmic lens, comprising:
- providing an optical model of the human eye;
- providing an optical model of a lens comprising an inner zone, an intermediate zone, an outer zone, and zonal design parameters;
- and
- adjusting the zonal design parameters based on an image output parameter for one or more non-optimal states of the lens.
Dependencies are inferred from the claim text.