Supplementation Enhances Vision of Pre and Post Cataract Surgery Patients By Mihir Parikh, MD When vision is restored with successful cataract surgery and intraocular lens implantation, patients generally expect to have good vision for the rest of their lives. However, population studies do not necessarily support that assumption. A leading cause of permanent vision loss in the developed world is age-related macular degeneration (AMD), and the risk of AMD increases with advancing age.