Visual Prosthetics: Cortical and Sub-retinal

Ultimately, I believe that Cortical will eventually be the most effective type of vision-replacement. Once the technology goes wireless, the images from the camera source will go directly to the brain; the subject's natural eye-system could deteriorate completely, but the patient could still see. That technology, however, is far from being safe and efficient enough to be used mainstream right now. In my opinion, the next step down is a sub-retinal implant. While a more complicated surgery is required and a few more complication are possible, I believe "pound-for-pound", so to speak, it offers more results than implants on the retina do. It still uses the retina, making it so the patient does not have any external gear with the possibility of being lost or damaged by everyday activities.