The strong emphasis重視 on educational achievement in China, Japan and other parts of South-East Asia may be coming at a heavy price. Researchers say that hard work at school plus the lack of exposure to outdoor light is damaging the eyes of almost 9 out of 10 students - with 1 in 5 at serious risk of visual視力 impairment障礙 and blindness.
The scientists say that young people need up to 3 hours a day of outdoor light - but many infants嬰兒 are also missing out as they nap during the middle of the day. Dr. Ian Morgan is the lead author of the study:
I think what's happened in South-East Asia is we've got a double whammy禍不單行. We've got the massive educational pressures and we've got the construction of a child's day in a way that really minimises the amount of time they spend outside in bright light.
The scientists say that genetic factors, long thought to play a big role in short sightedness近視, are not as important as the environment. They point to Singapore as a place with several distinct不同 ethnic民族 groups, all of whom are now suffering high levels of myopia近視.
The authors suggest that mandatory強制性 time outdoors should be considered by educational authorities across South-East Asia as a way of dealing with the problem.
this text is from bbc learning englishhttp://www.bbc.co.uk/worldservice/learningenglish/language/wordsinthenews/2012/05/120508_witn_sight_problems.shtml
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