] 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.

Vision is more than just sight, scientists learn