Retina Implant AG is the leading developer of subretinal implants for partially sighted and blind patients. After extensive research with German university hospitals and institutes which began with a large grant from the German Federal Ministry of Research and Education in 1996, Retina Implant AG was founded by Dr. Eberhart Zrenner and his colleagues in 2003 with private investors with the goal of developing the first fully-functioning electronic retinal implant to restore useful vision to the blind. Retina Implant began implanting in human patients in 2005, and has started a second clinical trial this year.