The disappearance process of mosquitoes usually refers to the liquefaction process of the vitreous body, causing mosquitoes is due to the gradual liquefaction of the vitreous body, under normal circumstances, the vitreous body should be a uniform structure of jelly-like material. As we grow older or myopia increases, the vitreous body gradually changes from a jelly-like structure to a liquefied condition, there will be a flying mosquitoes in front of the eyes. With the further aggravation of vitreous liquefaction, when the vitreous completely liquefied will become a consistent structure again, it is possible for the fly in the eye to disappear on its own. If this symptom exists for a long time, it can also be improved by medication or surgery, such as laser ablation or oral lecithin complex iodine tablets.