800度以上的近视会诱发眼底病变,使白内障发病年龄大大提前。很多人认为,眼睛看不见东西时才是白内障的征兆,这是认识上的误区。视力下降到0.4以下,并且出现晶体混浊,就被定义为白内障。近年来四五十岁的中年白内障患者增幅明显,这些患者有一个共同点:从小高度近视,视力近于失明。 Myopia more than 800 degrees will cause fundus lesions, so that the age of onset of cataracts much earlier. Many people think that it is a symptom of cataract when the eyes can not see anything. This is a misunderstanding. Visual acuity dropped below 0.4, and the appearance of crystal opacity, was defined as cataracts. In recent years, 40-year-old middle-aged cataract patients increased significantly, these patients have one thing in common: childhood high myopia, near vision blindness.