A BBC news report, with comments from major manufacturers, reports that watching 3D content, that doesn't need special glasses, can damage the eyesight of younger children and long term exposure could also be bad for adults.

http://www.bbc.co.uk/news/technology-12100925

Interesting! My husband, who works in media, keeps saying that 3D is the way of the future. I keep saying it makes me nauseous/gives me a headache! He wants a 3D TV, but at least I've convinced him to hold off until you don't need the glasses, so maybe by the time those non-glasses TVs get affordable the technology won't be hurting people's eyes...

For those of us with prescription specs - it is well nigh impossible to see the screen properly wearing two pairs! I think there is a long way to go with improvements before I would consider buying a 3D set, like the early versions of anything new in technology and will probably be half the price by then also. Does anyone else feel they are peering into a dim room when viewing 3D -'cos I do...

Those of us with monocular vision and lacking depth perception will NEVER be able to appreciate 3D TV.

I haven't seen any 3D TV but have been to the cinema to see a couple of 3D films. I have been pretty impressed with them, even though the 3D glasses have to go over the top of my prescription glasses. I didn't feel the screen looked dark. My prescription glasses don't have any kind of tint to the lenses but I know some do. That might make a difference to the quality of the view.

I have been labouring with a pair of Sainsbury free issue ones which might make all the difference, though I had these over my clear (not tinted) prescription lens. I have also seen 3D in cinema with the disposable ones over mine and thought it was amazing. I don't find the TV sets are big enough to give the same experience. Maybe I am claustrophobic with two pairs of glasses on my face!

I tried out a 3D TV at a Sony store a few months ago - it was neat, but I could feel myself getting a headache after a bit and didn't like the bulky glasses on top...

I wonder if that's because the 3D effect doesn't fill your entire field of vision as a cinema screen does. Normal vision is 3D anyway, then the TV's 3D stands out on top of that. Sort of 3D on top of 3D, which could make your brain hurt when sorting out what's going on . Maybe if the room was totally dark and the TV screen was all that could be seen, that would be better. Don't forget the popcorn as well though. The lack of that could have a bearing on matters.