Still not sold on 3-D.
I haven’t seen anything that convinces me that it adds to the experience.
Still waiting for Holography TV. 3D isn’t the same.
Binocular vision is great. Semi binocular vision is actually hazardous to your health.
So, how do you lose it ~ well, you could lose an eye, or go blind in one eye, or when it comes to 3-D TV or movies, just LOSE the receptors for one of the three primary colors in one eye, or part of an eye, or maybe lose part of your optic nerve devoted to the signals from one zone in one of your eyes.
It can get so bad that you can't actually watch a 3-D movie comfortably. Cataracts can hinder enjoyment of 3-D.
Best have your eyes checked ~ http://colorvisiontesting.com/online%20test.htm
My kids did recently.
It was something called a “play”.
3D is awsome. It makes the move not so flat. It may not make much of a difference on a home tv, but at a theater it really adds to the experience.