A Japanese industry group has compiled a set of safety guidelines for viewers of 3D images.
Electronics makers and research institutions on Monday released official safety standards for viewing 3D TV and movies. The restrictions were commissioned by the economy and industry ministry.
The guidelines say 3D images that are too solid could cause discomfort or eye fatigue to viewers.
They urge creators of 3-dimensional content to refrain from using stereoscopic images for too long or too often. Creators are also told to increase the levels of solidity in phases so that viewers can adjust their eyesight.
The safety rules call on viewers to watch the screen from the front and to only allow children to watch 3D images under adult supervision.
A survey of about 30 adults by the government-backed National Institute of Advanced Technology showed that 3D images with fast movement caused discomfort more often than ordinary 2D images
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