Retinal implants are medical devices designed to restore vision in individuals with severe retinal diseases, such as retinitis pigmentosa or age-related macular degeneration. These implants work by converting light into electrical signals that stimulate the remaining healthy cells in the retina, allowing the brain to perceive visual information. The technology typically involves a small camera mounted on glasses, which captures images and sends them to the implant. The implant then stimulates the retina through electrodes, helping users to detect light and shapes. While retinal implants do not restore normal vision, they can improve the quality of life for those with vision loss.