The patient’s eye pain may be caused by eye diseases such as iritis or other parts of the disease such as migraine, or it may be caused by visual fatigue, not necessarily related to the disease. 1. Visual fatigue: patients who use their eyes for a long time in close proximity or stay up late to play with cell phones may experience visual fatigue, and patients may have discomfort symptoms such as blurred vision, soreness and swelling of the eyes. 2. Eye lesions: patients with eye diseases such as keratitis, iritis, glaucoma, blepharitis, etc. may experience eye pain and other discomfort due to inflammatory stimulation and elevated intraocular pressure. 3. Other parts of the disease: migraine, sinusitis, and systemic viral infections involving the eye, such as herpes virus, patients may also experience eye pain. It is recommended that patients with significant eye pain should go to the hospital in time to assess their condition and follow the doctor’s instructions for treatment.