Speaking to Kotaku, Nintendo of America president Reggie Fils-Aime said that the upcoming Nintendo 3DS hand-held is not meant for "very young children." Fils-Aime said they are in line with guidelines followed by most 3-D content creators.
"We will recommend that very young children not look at 3-D images," Fils-Aime told Kotaku. "That’s because, [in] young children, the muscles for the eyes are not fully formed… This is the same messaging that the industry is putting out with 3D movies, so it is a standard protocol. We have the same type of messaging for the Virtual Boy, as an example."
So what is the appropriate age for the 3DS? According to Fils-Aime, seven years old or older. It will be interesting to see how Nintendo markets this on TV and in magazines in a way that doesn’t entice younger children. It seems to me like an impossibility.