does the nintendo 3DS give you eye cancer

There's no such thing as eye cancer. It's called radiation cancer and that's from all electronics. It's hard to get radiation cancer. For you to get it you'd have to be on the computer/on your DS for extensive hours for several days straight. You have nothing to worry about.

What no, it doesn't give you eye cancer. They're perfectly safe.

And sure, 3D may affect your eyes after some time, but that's why you're supposed to take breaks. And you can always slide the 3D off if it's a problem.

Although, apparently my vision must be amazing since I can play on full 3D for about 4 hours (that is, if the battery doesn't die).

Not that I know of. I doubt it though xD

I have a 3DS and it hasn't given me any problems, also you can turn the 3D part off.

I doubt it. A bunch of people play on their 3DS and do not get eye cancer. Unless, of course, you play on it for several days straight, which I am sure, no reasonable person would do.

I don't think so! I'm pretty sure they wouldn't have been allowed to sell them if they did

I've had a 3DS for about a year and I often use the 3D feature, and I don't have eye problems, it does make your eyes hurt after a while, but as far as I know, it doesn't give you eye cancer.