It's abnormal for the kid's eyes water while watching TV. Because of the fatigue of eyes, it will get dry eye, tears, eye swollen, sore eye or blur vision symptom later if you do not pay attention to this situation. This is just because long time use of the eyes to watching TV. The screenshot are too dazzling to the little kids, and it hurts the visual purple to makes color cast and hurts the visual pigments. The kid likes watching TV while running, which will make kids feel dizzy and hurt ciliaris for a long time, then lead to myopia. You'd better take care of your kids, binding the time of TV watching and make sure the TV in modest rays' condition.