| Aged 18 years or older |
Any co-existent ocular disease, with the exception of mild cataracts |
| Either gender |
Inability to visualize the retina due to corneal or other ocular media opacities (corneal degenerations, dense cataracts, trauma, lid malposition) |
| A confirmed history of outer retinal degenerative disease such as retinitis pigmentosa or choroideremia |
Any ocular condition that predisposes the subject to rubbing their eyes |
| Remaining visual acuity of bare light perception or less in both eyes |
Cognitive deficiencies, including dementia or progressive neurological disease |
| Functional inner retina (ganglion cells and optic nerve), as shown by the ability to perceive light and/or a measurable corneal electrically evoked visual response |
Psychiatric disorders, including depression, as diagnosed by a qualified psychologist |
| A history of at least 10 years of useful form vision in the worse seeing eye |
Deafness or significant hearing loss, or the presence of a cochlear implant |
| Must be willing and able to comply with the testing and follow-up protocol demands (preferably residing within 1.5 hours of the investigational site) |
Poor general health or pregnancy, which would exclude them from obtaining a general anesthetic |
