AMO's Tecnis™ Multifocal Intraocular Lenses (Tecnis MF), Alcon's ReStor Multifocal IOL

Inclusion Criteria: * Age 18 or greater * Bilateral condition (cataracts or Presbyopia) for which phacoemulsification and posterior IOL implantation has been planned for both eyes * Visual potential of 20/25 or better in each eye after cataract removal and IOL implantation * Clear intraocular media other than cataract * Normal OCT of the macula * No evidence of Keratoconus or significant irregular astigmatism on Preoperative topography * No evidence of Epithelial Basement Membrane Dystrophy on Slit lamp Exam * Availability, willingness, and sufficient cognitive awareness to comply with examination procedures Exclusion Criteria: * Use of systemic or ocular medications that may affect vision * Uncontrolled systemic or ocular disease * History of ocular trauma * History of intraocular, extraocular Muscle, or corneal surgery (including laser vision correction) * Amblyopia or strabismus * Known pathology that may affect visual acuity; particularly retinal changes that affect vision (macular degeneration, cystoid macular edema, proliferative diabetic retinopathy, etc.) * Diagnosed degenerative visual disorders (e.g. macular degeneration, or other retinal disorders) that are predicted to cause future acuity losses to a level of 20/25 or worse * Subjects who may be expected to require retinal laser treatment or other surgical intervention (i.e patients with diabetic retinopathy) * Capsule or zonular abnormalities that may affect postoperative centration or tilt of the lens (e.g. pseudoexfoliation syndrome) * Contact lens usage within 2 months for PMMA contacts lenses, 2 weeks for gas permeable lenses or 3 days for extended-wear and daily-wear soft contact lenses