Study: Making Kids Play Outside Reduces Rates of Myopia

Could making your kid play outside help prevent nearsightedness later? A Chinese study published Tuesday suggests it can.

With 30 percent of Americans suffering from myopia, and closer to 40 percent of the population in Asia, it's a question worth exploring.

People tend to believe that too much "close work," such as sewing or reading in poor light, might be the culprit. Other studies suggest time outdoors can reduce the rates of myopia. Scientists know that some combination of genetic risks and childhood activities are playing a role.