What causes pain in the corner of the eye?

Eye corner pain may be caused by various factors. Prolonged use of electronic devices, reading, writing, or similar activities can lead to eye fatigue, which in turn causes pain in the corner of the eye. Eye infections such as conjunctivitis and keratitis are also common causes of eye corner pain; these inflammations may result from bacteria, viruses, allergies, or other factors. In addition, trauma, dry eye syndrome, and blepharitis may also contribute to discomfort in the eye corner. If eye corner pain persists for a long time or is accompanied by other symptoms, it is advisable to seek medical attention promptly to determine the underlying cause and receive appropriate treatment. Meanwhile, maintaining good eye habits—such as getting sufficient sleep, avoiding prolonged use of electronic devices, and practicing proper eye hygiene—can help prevent the occurrence of eye corner pain.