Children can have healthier eyes by spending more time outdoors.Once they're outdoors, their focusing mechanism is going to be out there so that their eyes are not working hard.It also increases blood flow and keeps the eye healthier in the long road, as long as they protect it from the sun.It is said parents should encourage their kids to push their screens away from them, also at an arm's length away, if they're working on a computer or a video game, he said. And every 15 minutes during those activities, the children should take a look out a window to relax their eyes.