Parents often bring their children to the ophthalmology clinic to see their eyes, saying that their children have been blinking or squeezing their eyes a lot lately, and that they don’t seem to be doing well. Usually, most of these children are between the ages of 5 and 8 years old, and exhibit frequent blinking or even squeezing of the eyes, sometimes accompanied by nuzzling of the mouth, head bobbing, and so on. Ask the child if he or she is uncomfortable or what he or she is feeling. The child does not say there is anything that feels bad. Ask why they are like this. They could not answer. Most of the children had no ophthalmologic abnormalities on examination, and they cooperated well during the examination and did not blink or squeeze their eyes too often. There is no mention of this kind of imagery in ophthalmology textbooks or other specialty writings, except that in some popular science it is mentioned that one needs to rule out the presence of inverted eyelashes, follicular conjunctivitis, refractive error, optic fatigue, etc., or there are those who believe that it is part of the hyperactivity of small children, and even those who suggest ruling out neurological disorders. Even after ruling out all of these conditions, what if you still can’t find the cause? Don’t worry! Because this phenomenon can be slowly eliminated by constantly reminding the child to pay attention. This can also be associated with another phenomenon, young people in the rapid increase in height of the period, a few people will be mild bone pain, which is not a disease, do not need treatment, after a period of time to eliminate naturally. Children’s eyes are also growing and developing quickly, in a certain period of time is particularly sensitive, children unconsciously frequent blinking or squeezing eyes is a reaction. Just like the wound repair always feel very itchy, want to scratch, but when the wound grows well, there is no feeling. Therefore, this period of small children have these symptoms, in the ophthalmologist examination to rule out disease, you can often urge their attention to correct, let them do more interested in things, divert attention. The main purpose is to prevent the formation of such bad habits, so as not to affect the instrument.