There are many students in middle school wear the glasses, and many of them were wearing the glasses since little. We have to protect our eyes, prevent them from the short-sightedness. We should keep a good sitting posture, never read the books too closely. We’d better have a short break every hour of reading, close eyes or look at the distance. We should do the eye exercises every day. In the evening, we also shouldn’t read while we are lying. And more important, we shouldn’t spend hour and hour starring at our cellphone. We all should protect our eyes.有很多中学生都带着眼镜，其中很多人从很小就开始戴了。我们必须要保护我们的眼睛，预防眼睛近视。我们应该保持良好的坐姿，看书的时候不要离太近。我们最好每看一个小时的书能短暂休息一下，闭上眼睛或者看向远方。我们应该每天都做眼保健操。晚上的时候，我们也不要边躺着边看书。更重要的是，我们不要连续花几个小时盯着手机看。我们都应该保护我们的眼睛。