http://discovermagazine.com/2008/sep/19-fighting-for-the-right-to-clone"

It turns out that I had just published a paper showing that we could create human retinal pigment epithelial cells capable of restoring visual function in animals. The officer had a 16-year-old son who would go totally blind in two years without the therapy. By the time he finished his story, I was almost in tears because we had these cells and they had been frozen at that point for nine months."

not sure it's retinoblastoma or some other eye trouble. and of course the mainstream scientific view is against his claim.

http://www.findingdulcinea.com/news/science/2009/march/China-s-Controversial-Stem-Cell-Treatment-Helps-Blind-Girl-See.html

it's a british girl. my memory says there's another american girl