It is important to protect own eyes. I had a terrible headache today. The reason may be I have used computer for a long time. I am worried about the degree of myopic could increase and my future may be impacted. I did not pay attention to protect own eyes when I was a child so that I have not seen the world clearly from thirteen years old on. If I were a pupil, I should do eye exercises after studying and using computer. I am very regret I did not persist in protecting my eyes. Well, my father urged me to go to sleep. You know, I will not go to bed until my learning tasks have been accomplished. I am not sure if I have improvement, when am I able to speak or write natural English?