 The purpose of this study is to determine the safety and efficacy of Morcher Iris Diaphragms in the treatment of congenital and acquired aniridia. Morcher Iris Diaphragms are intraocular devices designed to provide an artificial pupil for patients suffering from partial or complete aniridia. These devices are constructed from clinical quality, ultraviolet light-absorbing, opaque black polymethylmethacrylate PMMA. After surgical implantation, patients are monitored over the course of one year to measure any changes to visual acuity and improvements in light and glare sensitivity. 