So when you think of Nintendo users who do you think of first?
Children of course!
Especially when you think of Game Boys and other handhelds kids are definitely the target demographic. But now the Nintendo 3D handheld 3DS, due out by the end of next March, is going through some serious safety tests right now. The conclusion this far is that young children should not look at 3D images.
This seems to be a standard way of covering themselves from any liability issues that may arise, and it should not be a problem for most gamers. Such as the lucky ones that got a chance to try out the 3DS at the Nintendo E3 booth, who only got sick of waiting in the ridiculously long lines and not from playing with the 3DS itself.
I suppose just like all of the finer things in life 3D should be enjoyed in moderation, so try not to go on a 5 hour bender that only stops when your retinas start bleeding … unless you are hardcore!