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Do You Suffer From 3D Sickness?

Aside from the high cost of active-shutter glasses, one of the biggest complaints about 3D TV is that watching it can make some people physically sick with eye strain, headaches, dizziness, nausea, or even convulsions. This phenomenon has prompted manufacturers such as Samsung and Sony to issue warnings about watching 3D content if you're drunk, pregnant—hopefully not at the same time!—tired, elderly, or prone to seizures. One possible explanation is that stereoscopic 3D is not the same as what we see in the real world, and the human brain responds differently.

I have never experienced any related symptoms while watching 3D TVs, and I realize that such warnings are mostly to cover the company's legal ass. Also, I suspect the incidence of these problems is greater with active-shutter glasses, which alternately open and close 60 times per second, than with passive glasses that are used in most commercial cinemas.

Still, I don't know how common "3D sickness" really is, so I ask you: Have you ever experienced any of the symptoms listed above while watching 3D content, and if so, under what circumstances?

Vote to see the results and leave a comment about your choice, especially if it depends on the program or where you sit. What programs or locations are best and worst?

Do You Suffer From 3D Sickness?