As we all know that the eyes are very important for us and it is essential for us too.So It is important for everyone to keep good eyesight. But do you know how to protect your eyesight?

我们都知道眼睛对我们是很重要的也是必不可少的。因此，对所有人来说保持好的视力是很重要。

First, don＇t keep your eyes work for a long time. You＇d better have a rest by looking in the long distance after you have studied an hour or so.

首先，不要让你的眼睛工作太长。你最好看一看远处来让眼睛休息一下在你学习了一个小时左右后。

Secondly, pay attention to the following: Don＇t read in the sun or in a poor light; don＇t read in bed or in a moving bus. And when you read you should keep the book away from your eyes for about a foot.

第二，注意以下的：不要在太阳底下或者灯光微弱的地方看书。不要在床上或者开着的车上看书。看书的时候应该让眼睛和书保持一英尺的距离。

And thirdly, do eye-exercises every day. It will also help you keep good eyesight.

第三，每天做眼保健操。这也能够让你保持好的视力。

If you obey the rules above, I think, you may prevent your eyesight from becoming short-sighted.

如果你按照上面的去做了，我觉得你可以让你的眼睛防止近视。