 A total of 50 patients of both sexes and any race or ethnic background who underwent uneventful routine bilateral cataract extraction and multifocal or accommodating intraocular lens implantation will be included. Subjects will be divided in 5 groups of 10 subjects each based on the IOL implanted as follows: ReSTOR 4.0 D, ReSTOR 3.0 D, Crystalens, ReZoom, and Mix-and-match patients implanted with ReSTOR in one eye and ReZoom in the fellow eye. 