Hello, everyone! My name is “eye pen”. I am not a common pen. I am the protector of students’ eyes. It is said that nowadays many, many children are wearing glasses. So I have been invented. I belong to Nancy. She is very anxious because most of her friends become shortsighted. Ha ha! Then one day she had a good idea. She invented me. I don’t want to make her disappointed. I need to be responsible to all the children.
　　You see, my body will turn red when you use me for over 30 minutes. It is a warning. And you should have a rest. In my head, there is a thermostat. When students use me to write, I’ll turn yellow when their heads are too close to the desk. It is also a warning. Then the students should raise their heads.
　　I am so happy that students take me to school every day. I will be a good eye protector and make students all have a good writing habit so that the number of shortsighted students will be reduced.