Patent ID: 7815678

Claim:
An accommodating intraocular lens (AIOL) comprising: (a) a cup shaped casing having a leading surface, a trailing surface with an aperture, and at least one elastically deformable shape memory optical element; (b) a carriage having a base plate and an aperture lens, and being slidingly mounted on said casing with said base plate lateral to said trailing surface for reciprocation between a first extreme position with said base plate adjacent said trailing surface and a second extreme position with said base plate distanced from said trailing surface relative to said first extreme position; and (c) a biasing mechanism for urging said carriage relative to said casing towards said second extreme position for deforming said at least one shape memory optical element to at least partially bulge through said aperture to afford the AIOL a natural positive diopter strength for near vision, said carriage being driven to said first extreme position on application of an external force to said base plate in an opposite direction to said urging direction to allow said at least one shape memory optical element to revert to its natural shape to decrease the AIOL's natural positive diopter strength for distance vision.