Patent ID: 7998198

Claim:
An accommodative intraocular lens (IOL) exhibiting a dynamic spherical aberration as a function of accommodative power, said intraocular lens comprising: an anterior optical element having at least one aspherical surface, and a posterior optical element having at least one aspherical surface, a mechanism coupling said anterior and posterior optical elements and allowing axial movement of said elements relative to one another in response to natural accommodative forces of an eye in which the IOL is implanted for providing accommodation when the intraocular lens is implanted in a subject's eye, said mechanism adapted to adjust an axial separation between said elements over a range of about 0 mm to about 2 mm as the accommodation varies from distance vision to near vision, wherein said aspherical surfaces of the anterior and posterior elements are adapted to provide a combined spherical aberration that varies with accommodation, wherein said combined spherical aberration varies over a range extending from about +0.20 μm to about −0.50 μm as the accommodation state of the eye varies from one suitable for distance vision to one suitable for near vision.