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Health

Children playing in the yard are less likely to develop myopia

05/06/2013

This article was translated by an automatic translation system, and was therefore not reviewed by people.

 


 




Studies linking benefits of outdoor activity and sun exposure to eye health
  
Children who spend more time playing in the yard are less likely to suffer from myopia. Two new studies have added evidence that daylight plays an important role in the prevention of visual impairment.

No one knows for sure why the light of day is important, but some experts believe that dopamine - a neurotransmitter responsible for feelings of pleasure - have your contribution. High levels of dopamine in the eye are associated with lower risk of myopia.

In childhood, myopia is correctable, but also is associated with development of severe forms of ocular disorders in adults, it increases the risk of diseases that lead to blindness, such as glaucoma and retinal detachment.

The most recent epidemiological studies in the U.S. on myopia reported that the disease has grown 65% in the number of cases since 1970. A study from Taiwan noted that 333 students divided time between homework and playground. These children, who previously spent their free time indoors, started getting 80 minutes per day in outdoor activities. For comparison, children were used in a nearby school where teachers did not oblige the activities outside the classroom.

The two groups of students were examined by eye before and one year after the start of the study. The children playing in the playground developed myopia outnumbered.
Another study, this time Danish, measured the impact of sun exposure in ocular development of 235 children of European country. In all, there measuring the depth of the eye, an important parameter to identify the risk of myopia, because when longest, can be difficult to see with focus distances.

Children exposed to fewer hours of sunshine grew in depth look into 0.19 mm in a year, while those who had more access to sunlight had growth of only 0.12 mm.

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Source: The Globe - Online

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This article was translated by an automatic translation system, and was therefore not reviewed by people.

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