The eyes are an important visual organ, so in ordinary times must care for the eyes, maintenance of the eyes are mainly the following methods: first, reduce the time of close eye use, such as prolonged reading or use of computers, cell phones and these electronic products. Second, if there is refractive error in the eyes, you need to wear glasses in a timely manner, which can effectively avoid the occurrence of eye fatigue. Third, the need to properly increase outdoor time, this is currently the most effective way to relieve eye fatigue, but also to prevent the emergence of myopia. Fourth, in ordinary times to maintain good eye habits, such as reading distance, generally should be maintained at about 35-40cm, do not lie down to read, and do not read in a shaky car, indoor light to moderate, neither too bright nor too dark. Do the above to be able to maintain their eyes.