Outdoor play can help prevent children becoming nearsighted
BEING nearsighted is far more common than it once was.
The prevalence of myopia, the condition’s medical name, in Americans has soared by 66% since the early 1970s, according to a 2009 study by the National Eye Institute; in China and other East Asian countries, as many as 90% of recent high school graduates are thought to be nearsighted.
