 This study will compare cataract patients with implantation of diffractive multifocal IOL with an additional power of 2.75 diopters Group 1 and with 3.25 diopters Group 2. Evaluations will be performed 1 and 3 months following cataract surgery, including measurement of uncorrected distance visual acuity UDVA, refractive error manifest refraction MR, and uncorrected near visual acuity UNVA at 33, 40, and 50 cm. At 3 months, internal aberrations and contrast sensitivity will be evaluated and subjects will complete a questionnaire on outcomes satisfaction, visual symptoms, and spectacle use. 