"Current versions of the device use external television cameras instead of the eye's own lens to form a visual image." Some MPEGs of what it might look like from the inside are on the Intraocular Retinal Prosthesis site.
"From the creators of Mongoloid and Mongolounge comes the latest mon-goloid-strosity, COOKIE MONGOLOID. Cookie Mongoloid is sesame speed metal. See the Cookie Mongoloid in all his blue, furry, googly-eyed glory backed by the baddest of female metal bands as they decimate and regurgitate your childhood favorites in an abrasive metal wrath. See their harem of gothic gyrators, the Cookies, demonstrate such elemental concepts as up and down in a blaze of lights, smoke and pyrotechnic cookie shrapnel."