Intraocular lens with free-form optical surfaces.

摘要

The invention relates to an intraocular artificial lens of variable optical power, comprising at least two optical elements of which at least one element is shiftable in a direction perpendicular to the optical axis with each of the optical elements having at least one free-form optical surface with such a shape that the combination of free-form surfaces exhibits different optical powers at different relative positions of the optical elements characterized in that the free-form surfaces have such a shape that said combination of surfaces is adapted to provide a non-linear change in optical power with linear shift of the optical elements in a direction perpendicular to the optical axis.