Patent ID: 8690942

Claim:
An intra-ocular artificial lens with variable optical strength, comprising: at least two optical elements, at least one of which is movable relative to at least one other element in a direction extending transversely to the optical axis, at least one of the optical elements having an optical thickness according to the formula t=A ( xy 2 +x 3 /3) where t is the optical thickness of the optical element in the direction of the optical axis, x is the coordinate in the direction of the motion of the optical elements, y is the coordinate in the direction perpendicular to the optical axis and to the x-direction, and A is a constant, wherein the optical elements have a form such that in different relative positions of the optical elements the artificial lens has different optical strengths, and wherein each of the movable optical elements is connected to two positioning means which are adapted for coupling to the iris of the eye.