许多人在工作之余都有读书看报的习惯,但随着年龄增长,进入中老年时期,便发现远视力正常,而在一般近距离工作中,必须另加一副凸透镜才能有清晰的视力,这种现象称为老视,也就是人们平常说的老花眼。老视是一种正常的生理现象,不能视为病态。随着年龄增长,晶状体逐渐变得坚实和硬 Many people have the habit of reading and reading newspapers while in their spare time. However, as they get older, they have found normal far vision, whereas in normal short-distance work, they must have a pair of convex lenses in order to have a clear vision , This phenomenon is called presbyopia, that is, people usually say presbyopia. Presbyopia is a normal physiological phenomenon, can not be regarded as pathological. With age, the lens gradually becomes firm and hard