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老年性白内障是老年人因生理机能衰退、晶体变性及产生混浊而发生的一种眼睛疾病。这种病多见于50岁以上的老年人。该病的临床特点多数是双眼发病,常自觉眼前有固定不动的黑点,并出现渐进性、无痛性视力障碍。视力障碍出现的时间,可因晶体混浊的部位不同而不同。晶体混浊可使眼睛呈多视、单眼复视或屈光
Senile cataract is an eye disorder in the elderly due to a decline in physiology, crystal degeneration, and clouding. This disease more common in the elderly over the age of 50. Most of the clinical features of the disease is the incidence of binocular, often consciously in front of a fixed black spots, and progressive, painless visual impairment. Visually impaired time, may vary due to the location of crystal opacity. Crystal opacity allows the eye to be multi-view, monocular diplopia or refraction