If the patient has dark fluttering shadows in the eyes and the examination is physiological, then generally oral lecithin complex iodine can be administered. If it is pathological, depending on the patient’s condition, you can take oral antiviral antibiotics or oral hemostatic drugs. There are black shadows in front of the eyes, in the clinical most common is the patient appeared flying mosquitoes, flying mosquitoes is mainly due to the patient appeared vitreous liquefaction or vitreous detachment caused by. Through a comprehensive systemic examination, if it is clear that the patient’s flying mosquitoes is physiological, then in this case can consider appropriate oral lecithin complex iodine to improve the patient’s symptoms. However, if the patient has dark shadows floating in front of the eyes is pathological, if it is uveitis, oral antibiotics or antiviral drugs can be considered according to the patient’s condition. If it is vitreous hemorrhage, then oral hemostatic medication can be considered depending on the patient’s condition.