等到老了，以为远视可以把它拉回来，却发现晶状体已经失去了弹性，近视远视并存，需要两幅眼镜了。
Many older folks must wear bifocals which have two different lenses- one to correct for the problems with near vision and one to correct for problems with far vision.
许多老年人必须佩戴有两种不同镜片的双焦眼镜，一种用于矫正近视问题，另一种用于矫正远视问题。
环顾四周，想想看，你身边戴眼镜的人占多大比重？
事实上，中国青年的近视问题早就见诸国际媒体的报端。
今年四月份，China Daily就曾报道过学生的近视问题：
More than half the young children and teenagers in China are nearsighted, according to a survey by top government agencies, which called for intensified efforts to prevent and control the condition.
相关部门的一项研究显示，中国有一半以上的儿童和青少年是近视眼，该研究呼吁加大预防和控制近视的力度。
The survey, which was conducted last year, found that eight of 10 senior middle school students were nearsighted, compared with 71.6 percent in junior middle school, 36 percent in primary school and 14 percent of 6-year-olds in kindergarten. Overall, 53.6 percent were nearsighted.
去年进行的这项研究发现，10名高中生中有8人近视，而初中生近视率为71.6%，小学生近视率为36%，幼儿园6岁儿童近视率为14%。总的来看，也有53.6%的人患有近视。
新华社的同期报道也显示，高中生近视人群中高度近视的人数也有显著增加。
The prevalence of a high degree of myopia also became alarming as the percentage of senior students in high school, who wear glasses stronger than six diopters, has mounted to 21.9 percent.
高度近视的患病率也令人担忧——高中生中戴着600度以上近视眼镜的比例已经上升到了21.9%
权威医学杂志《柳叶刀》在2018年的一项针对中国青年群体的研究中发现：
Up to 80 percent of the country’s young adults suffer from nearsightedness, according to a report in the medical journal Lancet. In contrast, the overall rate of myopia in the UK is about 20-30 percent.
医学杂志《柳叶刀》的一项报告显示，（中国）80%的年轻人患有近视。相比之下，英国的近视率大约为20%-30%。
早在2015年，美国国家公共电台引述新华社报道的数字称当时就有86%的高中生患有近视了：
If you walk the streets of China today, you'll quickly notice that most young people wear glasses. In Shanghai, for instance, 86 percent of high school students suffer from myopia, or nearsightedness, according to Xinhua News Agency.
走在如今的中国街头，你会很快注意到大多数年轻人都戴着眼镜。以上海为例，据新华社报道，86%的高中生患有近视。
类似的数字还被《每日电讯报》、半岛电视台和石英网等媒体报道过。
之后，2017年《南华早报》的报道引述了《柳叶刀》的一项研究显示：青少年大范围近视不仅仅是中国一个国家的问题，是整个东亚地区的问题。
The growing prevalence of myopia is not only a Chinese problem, but it is an especially East Asian one. According to a study published in The Lancet medical journal in 2012, by Ian Morgan, of the Australian National University, South Korea leads the pack, with 96 percent of young adults (below the age 20) having myopia; and the rate for Seoul is even higher. In Singapore, the figure is 82 percent.
近视患病率的不断上升不仅是中国一个国家的问题，而是困扰整个东亚的问题。澳大利亚国立大学的伊恩·摩根2012年在《柳叶刀》上发表的一项研究显示，韩国的近视率高居榜首，96%的年轻人（20岁以下）患有近视，首尔的近视率甚至更高。新加坡的这个数字是82%。
