ACCOMMODATIVE IOL WITH DYNAMIC SPHERICAL ABERRATION

摘要

The present invention is generally directed to accommodative intraocular lenses (10, 18) that exhibit a dynamic spherical aberration as a function of accommodative power. By way of example, in one aspect, the present invention provides an intraocular lens (10) having an anterior optical element (12), a posterior optical element (14), and a mechanism (16) for coupling the anterior and posterior elements so as to allow axial movement of those elements relative to one another for providing accommodation when the lens is implanted in a patient's eye. Each of the anterior and the posterior elements includes at least one aspherical surface, where the asphericities of the surfaces are adapted to provide a combined spherical aberration that varies with accommodation.