The media (not scientific) frequently disseminates information about the possibility of a retina transplant. Unfortunately, this surgery is still considered experimental.
Using retinal cells to replace damage retinal cell (ex: Macular Degeneration and Retinitis Pigmentosa). This procedure is not safely and do not have success rates greater than the failure.
For any eye treatment we must think on the risks and benefits that will bring the procedure, in case of transplanting the retina, the risks still are greater than the benefits.
Scientific publications report the possibility of eye transplatation treatment, but only in experimental animals model, like rabbits and rats.
However, it is likely that before a development of the technique of transplanting retina (free graft technique), we will been use stem cells with greater viability and safety.
We must await new works for a practical application in patients.
Prevention is still the best approach.