Does 3-D Stereo have harmful effects? Probably not. There are no studies that show that watching 3-D content will harm you. But then again, there are also no studies that show it won’t. Absence of proof is not proof of absence. Personally, I have seen some really bad 3-D content that makes me sick. Then again, I have also seen some really bad 2-D content that makes me sick. I guess that means that someone needs to fund a study to find an answer to the question. Until then, Gamasutra has asked an ophthalmologist for his opinion.

Stereoscopic 3D video games and movies make your eyes do weird things to create the illusion of depth. As a result, for some, 3D viewing elicits a feeling of imbalance, disorientation or a general indication that lunch is on its way back up.

But beyond those short-term effects, with 3D televisions hitting the market and Sony and Nintendo releasing 3D stereoscopic video games, is there risk of permanent eye damage from exposing eyeballs to the faux third dimension for prolonged periods of time?

“It’s not likely to cause any permanent harm to vision,” said Dr. Mark Borchert, a respected L.A.-based ophthalmologist with the American Academy of Ophthalmology, talking to Gamasutra.

via 3D Gaming Won’t Make Your Eyes Stick That Way, Says Top Doc @ Gamasutra