A Clinical Assessment of the Full Range of Functional Vision With Three Tecnis Multifocal IOL 1-Piece Models in Bilateral Cataract Extraction

Inclusion Criteria: * A patient with bilateral cataracts for which phacoemulsification extraction and a posterior multifocal IOL implantation has been planned for both eyes. * Male or female in good general health, 21 years of age or older at the time of the pre-operative examination and willing to have surgery on their second eye within 7 to 30 days of their first eye. * A patient must be willing to comply with study instructions, agree to make all office appointments, and complete the entire course of the study. * A patient has the visual potential of 20/32 or better in each eye after cataract removal and IOL implantation in the judgment of the investigator. * A patient with a preoperative corneal astigmatism of ≤ 1.5D in each eye \[intraoperative management of corneal astigmatism is permissible, and may include arcuate incision(s) or LRI(s).\] * A patient has a post-operative astigmatism target of ≤ 0.5D in each eye. * A patient with clear ocular media other than cataract in each eye. * A patient with normal OCT of the macula in each eye or a macula judged to be normal by the investigator by clinical examination. * A patient with naturally dilated pupil sizes of \> 3.5mm, evaluated under mesopic illumination. * A patient must be able to read, comprehend and be willing to give HIPAA and Informed Consent. Exclusion Criteria: * A patient with a known pathology that may affect visual acuity (as determined by the investigator); particularly retinal changes that affect vision (macular degeneration, cystoid macular edema, proliferative diabetic retinopathy, etc.) in either eye. * A patient with amblyopia or strabismus. * A patient with capsular or zonular abnormalities that may affect postoperative centration or tilt of the lens (e.g. pseudoexfoliation syndrome) in either eye. * A patient with pupil abnormalities (non-reactive, tonic pupils, abnormally shaped pupils, or pupils that do not dilate as least 3.5mm under mesopic/scotopic conditions) in either eye. * A patient with evidence of Epithelial Basement Membrane Dystrophy on slit-lamp examination in either eye. * A patient with evidence of keratoconus or significant irregular astigmatism on pre-operative topography in either eye. * A patient with a history of ocular trauma, or ocular surgery in either eye. * A patient that may, or is expected to undergo surgical intervention and/or ocular laser treatment prior to or during the study period in either eye. * A patient that had refractive surgery (LASIK, LASEK, RK, PRK, etc.) prior to cataract surgery in either eye. * A patient with a history of wearing PMMA lenses within 6 months, gas permeable lenses within one month, or extended wear daily soft contact lenses within seven days of their scheduled surgery. * A patient that requires the use of systemic or ocular medications that may affect vision. * A patient with an uncontrolled acute or chronic disease or illness that would increase risk or confound study results (e.g. diabetes, immunocompromised, etc.). * A patient with any uncontrolled systemic disease. A potential patient in whom therapy for a systemic disease is not yet stabilized will not be considered for entry into the study. * A patient currently participating or who has participated within 30 days prior to the start of this study in a drug or other investigational research study.