This story is part of a series on the current progression in Regenerative Medicine. This piece is part of a series dedicated to the eye and improvements in restoring vision. This marks the first story ...

Ray St. Clair first learned he saw things differently when he was about nine years old and walking down Congress Street in downtown Tucson with his mother. "Look at the gray car," he said to her.

A brouhaha broke out recently when it was revealed that TED treated a talk on color blindness by Coleman Hughes (who is black, if that matters), with surprising levels of hostility. Mr. Hughes and TED ...