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US 2004/0169816 A1Published application
Accommodating intraocular lens system and method
AssigneePowerVision, Inc.
InventorVictor Esch
Life of this patent
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Abstract
An accommodating intraocular lens is provided that having optical parameters that are altered in-situ using forces applied by the ciliary muscles, in which a lens body carries an actuator separating two fluid-filled chambers having either the same index of diffraction or different indices of refraction, actuation of the actuator changing the relative volumes of fluid within an optic element of the lens and altering the optical power of the lens.
Claims24
An intraocular lens comprising:
- a housing;
- an actuator disposed within the housing to separate the housing into first and second chambers;
- a first volume of a first fluid having a first index of refraction contained within the first chamber;
- a second volume of a second fluid having a second index of refraction contained within the second chamber;
- and
- means coupled to the actuator for altering the first volume relative to the second volume to alter an optical power of the lens.
3 more elements
A method of adjusting the power of an intraocular lens to provide accommodation, comprising:
- providing a lens having a housing, an actuator disposed within the housing to separate the housing into first and second chambers, a first volume of a first fluid having a first index of refraction contained within the first chamber, and a second volume of a second fluid having a second index of refraction contained within the second chamber;
- and
- actuating the actuator to alter the first volume relative to the second volume responsive to contraction of a ciliary muscle to thereby change an optical parameter of the lens.
Dependencies are inferred from the claim text.