辽宁省读者杨世友来信问:人老了眼睛自然没有原来好使,经医院检查后才知道是老年性散光。我想问一下老年性散光是怎样造成的?专家:有的老人认为自己年龄大了,眼睛变花是正常的,但有的人戴上老花镜后,上述症状不但没有改善,眼睛反而更觉疲劳,其实这些人患上了老年性散光。随着年 Yang Shiyou, a reader in Liaoning province, wrote a letter from Q: People with old eyes naturally do not have the original so that after examination by the hospital that senile astigmatism. I would like to ask the elderly astigmatism is caused by how? Expert: Some elderly people think they are older, the eyes change flowers is normal, but some people wear reading glasses, the symptoms not only failed to improve the eyes but feel more Fatigue, in fact, these people suffer from senile astigmatism. With years