This disorder affects 60 percent of people older than 60 and occurs when the normally clear, aspirin-sized lens of the eye starts to become cloudy. impairing vision.

• 60岁以上的人群，有60%25受到白内障的影响，发病以眼睛中阿司匹林大小的清澈的晶状体变得混浊，伴有视力下降为开始。