亚洲的孩子为什么大多戴眼镜？近视率近90%_新闻台

　　Up to 90% of school leavers in major Asian cities are suffering from myopia- short-sightedness - a study suggests. Researchers say the "extraordinary rise" in the problem is being caused by students working very hard in school and missing out on outdoor light.

　　近期的一项研究表明，在亚洲主要城市中，高达90%的毕业生都患有近视。研究人员说，这一问题“陡然增加”的原因是学生在学校拼命学习，较少接触户外光线。

　　The scientists told the Lancet that up to one in five of these students could experience severe visual impairmentand even blindness. In the UK, the average level of myopia is between 20% and 30%.

　　研究者对权威医学期刊《柳叶刀》杂志表示，五个学生中有一个可能会遇到严重的视力障碍，甚至失明。在英国，平均近视率是20%到30%。

　　According to Professor Ian Morgan, who led this study and is from the Australian National University, 20-30% was once the average among people in South East Asia as well. "What we've done is written a review of all the evidence which suggests that something extraordinary has happened in east Asia in the last two generations," he told BBC News.

　　领导这项研究的是来自澳大利亚国立大学的伊恩摩根教授。他表示东南亚地区的平均近视率之前也是在20-30%之间。“我们所做的就是将所有研究结果落实书面形式，证据表明，在东亚地区最近两代人中出现的近视率飙升非同寻常，”他告诉BBC记者说。

　　"They've gone from something like 20% myopia in the population to well over 80%, heading for 90% in young adults, and as they get adult it will just spread through the population. It certainly poses a major health problem."

　　“东南亚地区的近视人口已经从大约20%激增至超过80%，青壮年近视率正在接近90%，随着他们变为成年人，这将影响到整个人口结构。这必然会诱发重大的健康问题。”

　　Eye experts say that you are myopic if your vision is blurred beyond 2m (6.6ft). It is often caused by an elongationof the eyeball that happens when people are young. According to the research, the problem is being caused by a combination of factors - a commitment to education and lack of outdoor light.

　　根据眼科专家的说法，如果你的视力超过2米（6.6英尺）就模糊不清，那你就是近视。其原因通常是由于人们年轻时眼球拉伸造成的。据研究，这个问题是由多种因素造成，包括专注学习以及较少接触室外光线。

　　Professor Morgan argues that many children in South East Asia spend long hours studying at school and doing their homework. This in itself puts pressure on the eyes, but exposure to between two and three hours of daylight acts as a counterbalanceand helps maintain healthy eyes.

　　摩根教授认为，东南亚地区的许多儿童花大量时间在校学习和做功课。这本身就对眼睛造成压力，但接触两三个小时的日光可起到抗衡作用，并有助于保持健康的眼睛。

　　"We're talking about the need for two to three hours a day of outdoor light - it doesn't have to be massively sunny, we think the operating range is 10-20,000 lux, we're not sure about that - but that's perfectly achievable on a cloudy day in the UK."

　　“我们所说的是一天中需要两到三个小时的户外光线，并不需要大量的光线。我们认为1到2万的勒克斯照明强度就可以，对此我们不能确定，但在英国即使阴天也是完全可以做到的。”