(CNN) -- Nintendo is warning young children against playing 3-D video games on its upcoming handheld gaming system, the Nintendo 3DS.
Kids younger than 6 who play the 3-D games may have the growth of their eyes stunted, the company said in a statement on its Japanese website.
The warning notes that parents can turn off the 3-D functionality of the handheld 3DS. They can also set passwords that keep kids from using that feature.

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