我的朋友老王今年65岁,是一位教了30多年语文的老教师,退休后学校又返聘他回去教书两年。一次他到我家来说:近半年来眼睛不好,到医院检查时医生说,两只眼都患了老年性白内障。他问我,老年性白内障是怎样引起的,能预防吗?我就同他做了以下几个方面的谈话。 老年性白内障是一种后天性眼科常见病,多发生在50岁以后。具体的病因至今尚不清楚。预防问题一直是眼科专家学者研究的重点。经过近几年研究发现一些预防有效的方法,主要的有 My friend Pharaoh, 65, is an old teacher who has taught Chinese for more than 30 years. After retirement, the school returned to teach him for two years. Once he came to my house: eyes in the past six months is not good, to the hospital for examination when the doctor said that both eyes suffering from senile cataract. He asked me, how is senile cataract caused, can it be prevented? I made the following talk with him. Senile cataract is a common acquired ophthalmology, occurs after the age of 50. The exact cause is still not clear. Prevention has always been the focus of ophthalmic experts and scholars. After several years of research found that some preventive methods, the main