Retinal implants could restore partial vision
In lab tests on rat retinas, a photovoltaic chip helps display images through special goggles
http://www.sciencenews.org/view/generic/id/340650/title/Retinal_implants_could_restore_partial_vision
This is still a long way off, but it is quite interesting. Basically put a CCD chip in the back of the eye and people can see again (it is more complicated than that, of course). Perhaps Geordie and his goggles aren’t that far off in the future after all…