随着年龄的增加,人的视力逐渐衰退,有的人会出现白内障。人们通常认为,这是身体机能衰老引起的。但研究表明,视力减退还与体内维生素缺乏有关。视力减退的两个原因1.长期接受紫外线照射。眼睛的晶状体细胞主要是由结晶的蛋白质组成的。这些蛋白质像光学纤维一样,能让光线通过并 With age, people’s eyesight gradually decline, some people will have cataracts. People generally think that this is caused by the aging of the body function. However, studies have shown that vision loss and the body is also related to vitamin deficiency. Two reasons for vision loss 1. Long-term exposure to ultraviolet radiation. The lens of the eye is composed mainly of crystalline proteins. These proteins, like optical fibers, allow light to pass through them