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Playing outdoors can protect children from myopia

NEW YORK. Children who regularly spend time outdoors are less likely than their peers who prefer to stay indoors to become myopic, according to researchers.
In several studies published in the journal Optometry and Vision Science, scientists show that children who spend more 'time outdoors during the day tend to have a better view from a distance than those who choose indoor activities. The reasons are not clear, but the phenomenon does not seem to depend on the levels of physical activity, but rather, exposure to sunlight may play a role.

Also, being outdoors often forces children to focus on objects in the distance and animal studies suggest that this effect development of the eye helping to prevent myopia.

other hand, new studies have found no evidence to show unequivocally that work by focusing its attention increasingly on nearby objects - such as reading or using a computer - increases the risk of myopia of children.

In one of the searches, Dr. Jane Gwiazda and Li Deng of the New England College of Optometry in Boston have submitted a questionnaire to parents of 191 children aged 13 years and measured the views of children each year.

Overall, the researchers found that children who developed myopia outdoor spend on average 8 hours per week, compared with 13 hours of non-myopic children. Children also tended to look more myopic television, while a correlation was not found in time spent reading, studying or using the computer. In two other studies - one Australian, the other from Singapore - the researchers found similar connections between time spent outdoors and a lower risk of myopia.

09/02/2009 14:17