Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Due to age and diseases such as age-related macular degeneration and retinal pigmentosa, many persons undergo the phase of blindness. Blindness usually leads to other complications like depression, complexity and stress. This is where science and technology bring about their new invention: the retinal implant. Studies have shown that this procedure has allowed many blind people to once again enjoy their sense of sight.