According to the Times Online, British scientists have developed a therapy to cure the most common form of blindness, (macular degeneration, updated per request from comments) using embryonic stem cells.

Under the new treatment, embryonic stem cells are transformed into replicas of the missing cells. They are then placed on an artificial membrane which is inserted in the back of the retina.

Make that "the back of the retina of heathenistic Godless pagans", because I feel 100% certain that no Godfearing right wing types are going to allow these innocent dead baby parts to be injected into their eyeballs!