Aedes aegypti is an ocular disease caused by vitreous degeneration, which may have the symptom of a black dot rotating in front of the eyes, and needs to do dilated pupil, ultrasound and other examinations, and can be treated with medication or surgical treatment. Aedes aegypti is divided into physiological and pathological, physiological aedes aegypti is mostly caused by vitreous aging, pathological aedes aegypti may be caused by vitreous liquefaction and detachment due to retinal degeneration, uveitis and so on. The patient mainly manifests as the appearance of small black shadows fluttering in front of the eyes, accompanied by a sense of flashing light, can be through the dilated pupil examination of the retina, ultrasound to understand the degree of vitreous turbidity, to determine the patient’s condition. If it is physiological Aedes aegypti, patients usually do not need treatment, if it is pathologic Aedes aegypti, it is necessary to treat the primary disease, if it is caused by hypertensive eye disease, it can be applied to appropriate antihypertensive drugs, if it is caused by uveitis, it can be applied to the treatment of glucocorticosteroid drugs, in addition, if the retina is detached, it can also be treated with laser surgery. If the patient suffers from flying mosquito, it is recommended to consult a doctor in time to clarify the condition, and when medication is needed, it should be carried out under the guidance of a professional doctor, and should not be used blindly on its own.