] On March 6, 2000, he underwent a relatively new procedure
] in which cells known as stem cells were transplanted onto
] the surface of his right eye in the hope they would
] replace the scar tissue that made a cornea transplant
] impossible. May's left eye had too much damage to be
] repaired.

another reason to support this pandora's box known as stem cell research. Amazing how we are learning to hack the brain by reverse engineering it's sensory systems.