I can't see 3D movies for a reason that is not due to my vision (well not directly anyway). That is that I can't get the damn 3D glasses to fit over my normal eyeglasses without falling off, and when I do devise a jerry-rig to get them to stay on (usually involving rubber bands that I now know to bring with me to the theatre when it's a 3D movie), the 3D glasses are now too far away from my eyes to have the correct effect. (I keep seeing the frames and my eyes want to focus in on them instead of the movie because the frames are now no longer on the periphery but are now more toward the center of vision since they're further forward than they're supposed to be.)
It seems that if I want to see 3D movies I'll have to get LASIK first to ditch the eyeglasses.
Then again, I'm one of those people who can never get the Magic Eye (tm) pictures to come out right so maybe that won't be enough. I understand the optics of Magic Eye and I know perfectly well why it works, from a mathematical point of view. But where I fail is that I can't decouple my conscious control of my eyeball focus from the conscious control of my eyeball's inward aiming angle, which is a necessary step to making Magic Eye work. You have to *focus* your eyes close at the nearby paper while *aiming* them far away far into the distance past the paper instead of converging their aim to a point on he paper. For me those two things are not seperable commands my brain knows how to issue to my body. It's like asking me to move my pinkie without also moving my ring-finger. The pathway from my brain to the muscles to make that happen isn't available. They're wired together whether I like it or not. For me, the muscles that control eyeball shape (focus) and the muscles that control eyeball aim are mentally grouped together and respond to one single thought. The thought of "look close" or "look far" triggers BOTH motions, no matter how hard I try to separate the two into independantly controlled actions. (When you think about this, it makes sense for a brain to build up that behavior from birth since there is no natural situation where you would ever want to separate them OTHER than the man-made illusion of Magic Eye. A clever cerebellum can learn that these muscle motions always seem to go together and it can develop the learned behavior to marry them together into one single "command" even in a crude brute-force fashion that destroys the ability to command them seperately, as has happened in me.)