The feeling of foreign body in the eyes may be caused by foreign body in the eyes, eye fatigue or conjunctivitis, etc. Saline eye wash and eye drops can be taken to solve the problem according to different situations. 1. Foreign body in the eye: when a foreign body enters the eye accidentally, due to its large size, it cannot be discharged by tears or secretion, and will stay on the surface of the cornea, resulting in an obvious foreign body sensation. Saline can be used to clean the eyes, has not been able to discharge is recommended to seek medical treatment. 2. Eye fatigue: patients with excessive eye use will lead to foreign body sensation in the eye, may be accompanied by conjunctival congestion, blurred vision and other situations. Patients can follow the doctor’s instructions with sodium vitrate eye drops, polyvinyl alcohol eye drops, etc., which can play a lubricating role and help relieve the symptoms. 3. Conjunctivitis: When the surface of the eye is infected by bacteria and conjunctival inflammation is induced, a noticeable foreign body sensation can also be produced. This situation usually needs to be treated with drugs such as levofloxacin eye drops and tobramycin eye drops under the guidance of a doctor, which can effectively carry out the treatment. When the foreign body sensation in the eyes can not be eliminated, it is recommended to consult a doctor as soon as possible, with the help of the doctor to clarify the cause of the disease, and to carry out targeted treatment or therapy. Be careful not to rub your eyes with your hands to avoid aggravation of the condition, in addition, you should use medication under the guidance of a doctor, do not blindly use medication on your own.