Prevent Headaches in a 3D Movie
July 12, 2010 by Sarah Ward
Filed under Art & Design, Healthcare
In recent weeks, the animated blockbuster Toy Story 3 was released in 3D, and millions of people flocked to the theater to see the Disney film enhanced. Unfortunately, 3D movies aren’t always fun and games with many reports of sickness ensuing after attending a 3D film.
Many movie-goers experience headaches and blurred vision both during and after watching a movie in 3D due to eye strain. In real life when an object comes towards you the eye converges (moves inward), following its path, and accommodates or adjusts the lens shape in order to keep the object in focus. During a 3D movie, as your eyes attempt to follow the objects that leap off the screen, they are unable to accommodate in an effort to keep focused on the screen. It is this abnormal behavior that causes headaches and blurred vision. This effect has been dubbed the “vergence accommodation conflict” by the University of California Berkley.
Prevent Headaches in a 3D Movie
Thanks to innovative technology, many theaters have newer equipment that uses one projector, rather than the two that was used originally. The single projector alternates 144 frames per second between right eye and left eye images which helps to minimize the effect that causes headaches.
To prevent headaches and blurred vision in a 3D movie, avoid theaters that use the older stereoscopic red and blue glasses which may play a role in headaches and keep your eye on the focused images on the screen.
For more tips on preventing headaches and blurred vision, contact an optometrist eye doctor.
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