It's a scene that producers probably didn't foresee...
But watching 3-D movies gives some viewers such nausea and headaches that they're forced to leave theaters long before the credits roll. "There are some folks who also develop dizziness and vision-induced motion sickness," says Dr. Dominick Maino - American Optometric Association.
Here's the problem: Two separate images are shown to each eye to create the illusion of depth in a 3-D effect. Some people have trouble making their eye muscles work together to see and process those images correctly.
The strain can leave them with what doctors are calling "3-D vision syndrome." "What happens is you get this mismatch between your focusing system and your eye coordination system that can cause discomfort," adds Maino.
Anywhere from 2 to 6 percent of people are affected... but the problem often remains masked until they watch something in 3-D. "The technology brings these binocular vision problems to the forefront," says Maino.
The issue can become worse when viewing 3-D on screens closer to your face... like on handheld video games as opposed to theater screens.
So while the new technology adds an extra dimension of profit at the box office, the 3-D experience may leave eye-strained viewers feeling flat.
Depending on the exact eye muscle or coordination problem... your eye doctor should be able to recommend a therapy to help.
