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US 7,068,439 B2Granted
Lens system and method for power adjustment
AssigneePowerVision, Inc.
InventorsVictor C. Esch, John H. Shadduck
Life of this patent
Estimating the term…
Abstract
A lens is provided that having optical parameters that may be adjusted in-situ, and is particularly useful as an IOL for use in cataract patients that require an adjustment in the optical power of the lens post-implantation. In one embodiment, the lens body carries an array of interior fluid-filled cells in which fluid is controllably moved upon application of energy from an external source to move a fluid media into or out of the cells to thereby alter the lens surface shape.
Claims16
A lens comprising:
- a lens portion defining an anterior surface layer and a posterior surface layer;
- at least one deformable cell interposed between the anterior surface layer and the posterior surface layer so that deflection of the deformable cell induces a corresponding deflection of either the anterior surface layer or the posterior surface layer, the deformable cell defining an adjustable volume of a fluid therein;
- a haptic portion having a fluid reservoir;
- and
- a configurable passageway interposed between the fluid reservoir and the deformable cell, reconfiguration of the passageway adjusting the volume of fluid in the deformable cell.
2 more elements
A lens comprising:
- an optic portion;
- a haptic portion;
- at least one deformable cell;
- a reservoir in haptic portion;
- and
- a configurable passageway interposed between the deformable cell and the reservoir to control fluid flow into or out of the deformable cell to thereby controllably deform and alter an optical parameter of the lens.
3 more elements
Dependencies are inferred from the claim text.