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US 2014/0180409 A1Published application
Accommodating intraocular lens providing progressive power change
AssigneeAbbott Medical Optics Inc.
InventorHuawei Zhao
Life of this patent
Estimating the term…
Abstract
An accommodating intraocular lens for providing a range of accommodative vision includes a deformable optic. The deformable optic includes a plurality of layers that have a progressively increasing hardness and/or refractive index characteristic from the outermost layer to the innermost layer to provide a range of accommodative power.
Claims16
An accommodating intraocular lens, comprising:
- an outer lens enclosure having an anterior structure comprising an anterior surface configured to reside adjacent an interior anterior surface of an evacuated capsular bag and a posterior structure comprising a posterior surface configured to reside adjacent to an interior posterior surface of the evacuated capsular bag, the anterior surface and the posterior surface of the outer lens enclosure extending to and being joined at an equatorial zone of the intraocular lens;
- a first inner portion having an anterior zone and a posterior zone, the anterior and posterior zones of the first inner portion being disposed adjacent to the outer lens enclosure;
- and
- a second inner portion having an anterior zone and a posterior zone, the anterior and posterior zones of the second inner portion being adjacent to the first inner portion;
- and
- an innermost member disposed between the anterior zone and the posterior zone of the second inner portion;
- wherein the intraocular lens is deformable by ciliary muscle action when positioned in the evacuated capsular bag such that at least the outer lens enclosure, the first inner portion or the second inner portion are deformed by progressively increasing ocular force, the intraocular lens having an unaccommodated state in which the intraocular lens provides a base optical power and an accommodated state in which the outer lens enclosure and the first inner portion, and the second inner portion each provide an add power.
4 more elements
An accommodating intraocular lens, comprising:
- an outer layer configured to engage an interior surface of an evacuated capsular bag of an eye, the outer layer configured to provide up to 1 diopter of add power in an accommodated state;
- an outer core disposed within the outer layer, the outer core having a hardness and/or a refractive index greater than that of the outer layer;
- an inner core disposed within the outer core, the inner core having a hardness and/or a refractive index greater than that of the outer core;
- wherein the outer core provides up to about 1 diopter of add power in the accommodated state.
1 more element
An accommodating intraocular lens, comprising:
- an outer layer and a plurality of inner layers, each of said layers configured to deform upon ciliary muscle action from an unaccommodated state to an accommodated state such that each of said layers provides an add power in the accommodated state;
- each of the layers having progressively increasing refractive index and/or hardness characteristic, such that the outer layer has a refractive index and/or hardness characteristic lower than refractive index and/or hardness characteristic of the plurality of inner layers,
- the accommodating intraocular lens configured to simultaneously contact an anterior inner surface of an evacuated capsular bag and a posterior inner surface of the evacuated capsular bag.
Dependencies are inferred from the claim text.