The new crop of 3-D movies hitting theaters are making some people sick -- literally.
It's not the alien creatures bleeding off the screen or half-eaten humans spit out in your direction by fierce dragons. It's just the way 3-D plays tricks on your brain, mimicking symptoms of motion sickness.
The problem, if you have one, may lie in your head and, in particular, your eyes, experts note.
-- By Amanda Gardner



