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Study Shows That 3D Content Can Impair Vision

by Maverick on July 26, 2011

A study published last Saturday (July 23) by the Journal of Vision showed that people who watch 3D content suffer greater eyestrain than those who watch the same production in its two-dimensional versions. The tests were conducted by researchers at UC Berkeley, and had Samsung as one of their main sponsors for the research department.

The biggest problems identified responsible is the disparity between the distance from the screen surface and depth shown by the three-dimensional images. In all, 24 people participated in the experiment, that after watching videos using the two types of technology, completed a questionnaire about the fatigue they felt in their eyes, necks and backs. Another item was rated the clarity with which they could observe objects after the experiment.

Alert to content producers in the videos used, the researchers sought to detect the reactions caused by differences between the focal point and the distance of convergence of the images. While production in these 2D points coincide, those in the 3D display is the focal point of the device, while the distance of convergence varies depending on the scenes shown.

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Study participants said they experienced greater eyestrain when the images had shown differences between the focal point and the distance of convergence of the images. The study found that this feeling is stronger when the convergence occurs at a point that is beyond the screen, not as sharp as the point is closer to the viewer.

The research is especially important for developers of 3D content, from which it can create productions that do not harm both the consuming public. The result also serves as a warning that content types work better on the big screen than on home televisions, they usually cause more damage to your eyes.

For Further Reading:

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