Mosquitoes with chloramphenicol eye drops do not work. Flying mosquito is divided into physiological and pathological, physiological flying mosquito is mostly caused by vitreous aging, pathological flying mosquito may be caused by vitreous liquefaction and detachment due to retinal degeneration, etc. The patient’s main manifestation is the appearance of small floating black shadow in front of the eyes, accompanied by flashing sensation and other symptoms, if it is physiological, it doesn’t need to be treated, if it’s pathologically, it needs to be treated for the primary disease. Chloramphenicol eye drops is a kind of antibacterial eye drops, mainly used for the treatment of trachoma, conjunctivitis and other infectious diseases, so it is not effective for flying mosquito. If you suffer from flying mosquito, affecting normal vision or black shadow suddenly aggravated and so on, it is recommended to timely consult a doctor for examination and treatment.