3D Display Harms Your Eyes And Brain
Since the introduction of 3D screen technology and 3D movies, we have been attracted to theatres and everything connected with 3D technology. But no one ever thought of why a headache occurs after viewing 3d content. Why does one feel fatigue or visual discomfort after viewing 3D content?
A Research Team at University Of California, Berkeley conducted a research on 24 adults and determined that 3D content hurts both your eyes and brain. The medical term used for this is ‘Vergence and Accommodation’. To view 3D content, the eyes must adjust accordingly and constantly to both screen and distance of the 3D content which puts unnecessary work on eyes and extra burden on your brain.
Martin S. Bank, an Author and also Professor of Optometry and Vision Science, wrote in an article, “When watching stereo 3D displays, the eyes must focus — that is, accommodate — to the distance of the screen because that’s where the light comes from. At the same time, the eyes must converge to the distance of the stereo content, which may be in front of or behind the screen.”
A stereo content placed in front of a screen causes visual discomfort but if 3D content is viewed from a short distance like on a desktop computer or a smartphone. It is even more visually harmful to watch a 3D content in a movie theatre because the stereo content is placed behind the screen.