"It can be slightly disorienting like motion sickness- like staring out a car window," Bennett said. Nausea and dizziness can occur as scenes change quickly, which does not occur in reality. "With 3D viewers or 3D movies, we're now asking the muscles to work separately."Ĭhanges in the muscles' normal relationship causes strain and fatigue that can cause a headache. "When we are looking at the natural world, the eyes, the muscles in the eyes that allow us to focus, and the muscles that move the eye work in tandem," he said. Some viewers commonly experience headaches, nausea and dizziness while trying to 3D, but these symptoms are temporary. A 3D image is an attempt to re-create that on screen. The brain receives information from each eye individually and that creates a sense of depth or stereopsis. The eyes are separated by just enough distance so each eye sees from a slightly different vantage point. Professionals like ophthalmic photographer Timothy Bennett of Penn State Hershey Eye Center say there are no health issues associated with 3D imaging and use this technology safely on a daily basis without issue.
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