据有关部门调查表明:目前,我国配戴眼镜的人近3亿。大中城市的中学生戴眼镜者达30％左右,大专院校师生戴眼镜的比例则更高。于是,眼镜市场也繁荣起来。现在,不少城市大街小巷的眼镜摊、眼镜店比比皆是,有的服装店,甚至也挂牌配镜卖镜。据估计,每年全国眼镜市场上销售各类眼镜约500万副。 如此众多的眼镜,其质量又如何呢? According to investigations by relevant departments, at present, there are nearly 300 million people in China wearing glasses. Middle school students in large and medium-sized cities wear about 30% of glasses, and the proportion of teachers and students wearing glasses in tertiary institutions is even higher. As a result, the glasses market has also prospered. Nowadays, many of the city’s streets are full of eyeglass stands and optical shops. Some clothing stores even sell mirrors. It is estimated that about 5 million pairs of glasses are sold on the national eyewear market each year. How about the quality of so many glasses?