Anatomically speaking, the tail of the eye is called the outer corner of the eye. If there is pain when blinking, in addition to excluding skin trauma in the tail of the eye, it is mostly caused by impaction, blepharitis, conjunctivitis, ocular tumors and other factors, the specific analysis is as follows: 1, impaction: if the patient’s upper and lower eyelids at the tail of the eye eyelashes grow upside down to the surface of the cornea, then it may be friction with the corneal epithelium, which can lead to blinking pain, a foreign-body sensation, bloodshot eyeballs, The condition can be treated by physical removal, ablation, or surgery. 2. Blepharitis: Blepharitis, also known as granuloma, is an acute suppurative inflammation of the eyelash follicles and lid glands caused by Staphylococcus aureus, usually accompanied by localized eyelid congestion, edema, distension, and pain when blinking, which can be treated by antibiotics and other treatments. Consult the doctor for antibiotics and dietary care to relieve the symptoms, and if there is abscess, incision and drainage are required; 3. Conjunctivitis: for patients with conjunctivitis triggered by physicochemical factors, microbial infections, allergic inflammation, etc., there may be pain when blinking, conjunctival congestion, photophobia, eye burning, increased secretion, etc., which is usually treated with antibiotics locally and usually attention to rest and eye cleaning. 4.Ocular tumor: if there are retinal hemangioma, orbital hemangioma and other ocular tumors, then the structure of the eye is likely to be damaged by destructive lesions, often accompanied by ocular edema, pain, foreign body protrusion and other symptoms, such patients should go to the hospital in time to improve the relevant examination and treatment. It is recommended that patients go to the hospital in time for specific consultation and examination to clarify the cause of the disease and then treat the symptoms.