Children Who Regularly Play Outdoors May Be Less Likely To Be Nearsighted.

The UK's Telegraph  (8/2, Adams) reported, "Despite popular theories that bookworms were more likely to require glasses, a study" of some 14,000 children published in the journal Investigative Ophthalmology and Visual Science "has suggested that it is time spent indoors that has an impact on eyesight, rather than reading. Academics at Bristol University discovered that those who regularly played outdoors when they were eight and nine were almost half as likely to be shortsighted by the age of 15 as those who did not." 

http://www.telegraph.co.uk/health/healthnews/9446404/Outdoor-play-halves-chance-of-being-short-sighted.html