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Children when watching TV, always want close to the，But it is a kind of behavior is
harm to eyesight。If you can't very good protect vision, when he had grown up, is
likely to myopia。This tool can be in when a child is too close to alert, keep children
and television. To protect eyesight。When he was a bit close to, a faint red lightWhen he again close a little red lights graduallyWhen he was close by, to alert the red glare