Clinical results with the model 1IRP implant

This paper discuss the feasibility study of implanting an epiretinal prosthesis in humans with bare or no light perception vision from retinitis pigmentosa. Patients were implanted with a Second Sight intraocular epiretinal prosthesis in the eye with worse vision. The implant consisted of an extraocular microelectronic device and an intraocular electrode array, connected by a multiwire cable. At the end of the procedure, it was concluded that all the subjects could see visual perceptions that correlate to electrical stimulus from a chronically implanted retinal prosthesis. Patients used a camera driven stimulus to perform simple tasks.