Eye corner pain may be caused by fatigue, blepharitis, blepharitis and other reasons. 1. Fatigue: If you use electronic products for a long time, stay up late, etc., resulting in overuse of the eyes and eye fatigue. It is possible to have pain in the corners of the eyes. 2. Blepharitis: It is what is clinically known as wheal, an acute inflammation caused by staphylococcal infection. If you suffer from blepharitis, it will lead to redness, swelling, heat and pain at the corner of the eye. 3. Blepharitis: It is usually a chronic inflammation caused by bacterial infection of the surface of the eyelid margins and eyelash follicles. Blepharitis can lead to redness, burning sensation, itching, pain and other uncomfortable symptoms at the outer eyelid margin at the corner of the eye. If the corner of the eye is painful, it is recommended to go to the ophthalmology department in time for examination, to clarify the cause of the disease, and standardize the treatment under the guidance of the doctor.