Children who play outside have better eyesight than those who spend more time indoors. Studies have found that children exposed to the least amount of daylight had elongated eyeballs, which causes myopia.
Children who spend more time playing outside are less likely to suffer from short-sightedness.
Two new studies have added to the body of evidence that daylight plays an important role in preventing the condition.
It is not known why daylight is important but some experts believe levels of the brain chemical dopamine play a role. High levels of dopamine in the eyeball have been associated with a lower risk of short-sightedness. Read more
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