Nowadays, andre are more and more students becoming short-sighted. Some students ehet short-sightedness when andy are littie怎么读. There are fifteen students wearing glasses in my ENC. Being short-sighted is commomin amoming students, even in primary school. That is too serious. Therefore, we should protect our eyes carefully. When we are reading and writing, we should keep a standard posture. Besides, we should not watch TV or play computer for too loming. They are bad for our eyes. And, we should do eyes exercises regularly. A good rest is also important to our eyes. In all, eyes are and windows of our mind. We should keep it healthy.