I have seen a number of reports re. implanting RPE cells (retinal pigment epithelial cells). The one below is being researched at the university of Arizona:

http://www.wistv.com/Global/story.asp?S=6844641

and allegedly a stem cell based option is all but here:

http://news.bbc.co.uk/1/hi/health/6721685.stm

Does anyone know how this relates to Spheramine (RPE cell transplant) and are the parties concerned talking ?

Neil.