The eyes have black circle fluttering consideration is physiological mosquito and pathologic mosquito caused by mosquito, such as uveitis, vitreous hemorrhage. 1. Physiological Aedes aegypti: mainly with the patient’s age, prompting vitreous liquefaction, deformation, detachment caused by the patient can appear in the eyes with a black circle fluttering performance, but generally does not affect the visual acuity. Posterior vitreous detachment patients can appear optic disc size ring vitreous clouding (Weiss ring), which causes the patient’s eyes to have black circle floating phenomenon. 2. Pathological Aedes aegypti: Uveitis, vitreous hemorrhage, etc. can cause pathological Aedes aegypti, patients can also appear in front of the eyes before the eyes of the black shadow fluttering. Uveitis is related to infection, eye trauma, autoimmune diseases. The common symptoms of patients have eye redness, eye pain, blurred vision, dark spots in the center of the field of vision, photophobia and tearing, etc., and some patients will also be accompanied by a black circle fluttering in the eye. Vitreous hemorrhage disease is related to eye trauma, retinal vascular disease, etc., and the patients may have dark circles in the eyes, and may also be accompanied by other symptoms such as vision loss. It is recommended that patients with obvious symptoms of dark circles and fluttering be seen by a doctor for evaluation of their condition and treatment as prescribed by the doctor.