Foreign body sensation in the eyes is a common clinical symptom, the nerve endings of the eyes are rich and sensitive to external stimuli, generally foreign body sensation in the eyes is divided into external factors, physiological factors, psychological factors, pathological factors, the need to clarify the cause of targeted treatment. When a foreign body enters the eye, such as small flying insects or other foreign bodies in the conjunctiva and cornea, the foreign body feeling in the eye is strong, try to use tears or saline to clean, if you still can not get the foreign body, to promptly seek medical attention. Second, physiological factors when there is eye fatigue and other excessive use of the eyes, resulting in eye dryness, over time will cause eye pain, feeling a foreign body in the eyes, patients should pay attention to the time spent with the eyes, eye fatigue when you can do eye exercises to relieve. Third, psychological factors people in the case of tension, anxiety, will feel some problems in both eyes, will produce a strong psychological implication, excessive tension, will make the situation more and more serious, the situation should pay attention to eye hygiene, pay attention to rest, avoid staying up late, to ensure sufficient sleep, and relaxed state of mind. Patients may feel a foreign body sensation in their eyes, which can be treated with polyene or imidazole eye drops under the guidance of a doctor. 2. impingement: impingement is due to the wrong direction of eyelash growth, which sometimes stimulates friction and damages the cornea, producing a foreign body sensation. There are two types of wheals, internal and external, mostly caused by Staphylococcus aureus as an acute purulent inflammation. The early stage of the wheals can be treated with hot compresses, and in severe cases can be incised to drain the pus, and the foreign body feeling will disappear after healing. The above examples are only some of the pathological causes of foreign body sensation in the eyes, but it may also be caused by conjunctivitis, conjunctival stones and other factors, so it is necessary to understand the causes before treatment and to carry out symptomatic treatment. Pay attention to the hygiene of your hands and avoid rubbing your eyes with them. Also pay attention to rest, do not use the eyes for a long time, usually can do some eye massage to relieve visual fatigue.