Blindsight

I did not know that this is possible, but it’s quite amazing.

A man had several strokes which left him blind.

But, his eyes were not damaged – only the visual cortex, the part of the brain which processes the input from the eye into pictures, was damaged.

The most curious thing happened:  bits of information fed from the eyes to other bits of the brain were interpreted correctly.  The patient could even navigate a maze without help, without bumping into things – even though he could not actually see the obstacles!

Apparently, this is called ‘blindsight’!

So, what is it called when you can actually see things well, but still bump into them all the time?  ;o)