People may "get uncomfortable" with 3D viewing, like nausea or headaches, but there's "no evidence" that it can leave behind lasting harm.
"It's not likely to cause any permanent harm to vision," said ophthalmologist Dr. Borchert. He was nominated as one of the best S. Californian doctors in '09 by the LA Times.
"There are people who get uncomfortable with it, and get eye strain or headaches, or on much rarer occasions, a sense of imbalance or nausea, but there's no evidence it can cause permanent harm to your vision or use of both eyes together or anything like that."
"But the effect of 3D on young children, we have no idea. For older children, it's not going to hurt them. I can't imagine how this is going to cause any kind of permanent harm to someone who is over four years of age," he continued.
Sony has already taken steps to protect themselves from legal backlashes by updating their disclaimer lingo in the PlayStation Network's Terms of Service. Nintendo recommend children under 7 shouldn't play with their new Nintendo 3DS.
Is this just the corporate legal department being overzealous?