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在人的眼球内,有一个扁圆形双凸面的透明体,医学上称之为晶状体。老年性白内障是指透明的晶状体随年龄的增长,逐渐变为混浊,从而阻止光线透入眼内,导致视力障碍。这种变化是一个逐渐演变的过程,一般50岁左右就可能发生最轻微的晶状体混浊,及至老年,发展到影响视力的混浊程度,成为白内障。当混浊的晶状体被摘除并植入一个人工晶状体,光线又能透入眼内,恢复
In the human eye, there is a flattened biconvex transparent body, medically called the lens. Senile cataract refers to the transparent lens with age, gradually become cloudy, thus preventing light penetration into the eye, leading to visual impairment. This change is a gradual process of evolution, usually the youngest 50 years of age may occur the slightest lens opacity, and to the elderly, the development of opacity affecting the degree of opacity, become cataracts. When a turbid lens is removed and implanted in an IOL, light can penetrate into the eye and recover