We've heard plenty of times over recent months that 3DS could cause eye problems in later life, and now Nintendo is taking no chances by issuing a formal statement aimed at parents of young children, advising them to play with the 3D effect turned off.

Nintendo quotes vision researchers who claim:

There is a possibility that 3D images which send different images to the left and right eye could affect the development of vision in small children.

The advice is aimed at protecting children aged 6 and under, with whom the previous DS machines have been popular. A slider on the right-hand side of the 3DS's top screen is used to alter the depth of the 3D, but Nintendo is set to include a built-in parental lock to prevent youngsters activating the 3D effect, according to some reports.

[source bbc.co.uk]