So, when looking at something far away with an elongated eye, the image focuses ... effects of screen time," assures Neda ...

A new study linked each extra hour of daily screen time to a 21 percent greater risk of developing nearsightedness. Limiting screen time to less than one hour daily may help prevent vision ...

Spending more hours on smartphones, tablets and other digital devices — and less time outdoors ... of prolonged screen time on their kids' vision. More Getty Images/Sean Gallup "Our findings ...