I don't know
I think I've heard about this before. His eyes still work perfectly, it's just the part of his brain that interprets what they see is broken.
It's not massively unreasonable to suppose other parts can detect basic visual cues.
(
The Coast Of Yemen, Wed 28 Jan 2009, 11:30,
Reply)
Yeah
Was in NewScientist about 2 months ago I think
just before my subscription ran out :(
(, Wed 28 Jan 2009, 13:44, Reply)