The eye is particularly sensitive to various stimuli, stimulation may be manifested as redness, swelling, heat, pain in different parts of the eye, the stimulation of different pain felt by different, sometimes many friends will feel pain in the corner of the eye, the following specific introduction to the common causes of pain in the corner of the eye: 1, excessive eye fatigue, poor blood circulation, resulting in dry eyes pain in the corner of the eye. 2, lacrimal gland inflammation, conjunctivitis, wheals at the corner of the eye caused by the corner of the eye pain. Mostly accompanied by other symptoms such as redness of the eyes. 3, dry eyes triggered by visual fatigue lack of sufficient tears to moisten, dry, sensitive to external stimuli lead to stinging pain in the corner of the eye. 4, corneal lesions, scleral lesions and infections of the eyelids can cause corner pain. 5, Certain mechanical stimuli such as impingement and ocular calculi can lead to corner pain. 6. Blepharitis, lacrimal gland infection, and skin infection in the corner of the eye can cause pain in the corner of the eye. There are many causes of pain in the corner of the eye, including bad habits, inflammatory infections and the eye itself, and the nature of the pain varies from cause to cause.