There is black smoke floating around in front of the eyes, mainly considering physiological vitreous clouding or pathologic retinal degeneration, the former does not require special treatment, while the latter requires early laser or even surgical treatment. 1. Physiological vitreous clouding: also known as flying mosquito, mainly due to ageing, hyaluronic acid macromolecules in the vitreous cavity are cracked and water is analyzed, which leads to uneven refractive medium in different places in the vitreous cavity, causing black shadow floating. This condition generally does not require special treatment, and patients with more obvious symptoms can follow the doctor’s instructions to use amiodarone peptide eye drops and other drugs to alleviate the symptoms. 2. Pathologic retinal degeneration: in severe cases, retinal tears and retinal detachment may occur. This is mainly due to the vitreous body pulling on the retina, which causes black shadows in front of the eyes, and even a sense of flashing light. At this time, you need to go to the hospital in time, check the fundus of the eye, if you find retinal cracks or even retinal detachment, you need early laser and surgical treatment to prevent further loss of visual function. Black smoke floating around in front of the eyes is recommended to consult a doctor in a timely manner, to clarify the cause of the disease, under the guidance of the physician to take scientific means of treatment.