The pain under the eyes may be caused by visual fatigue after prolonged overuse of the eyes, mainly manifested as soreness and pain in the eyes, slight congestion in the eyes often occurs after excessive use of the eyes, and in severe cases may be accompanied by pain in the head and face on the same side. Most of the early stages of visual fatigue can be treated with hot towels for hot compresses, and most do not require the use of drugs. If there are frequent and recurrent attacks over a long period of time, you can use drugs to relieve eye fatigue, such as heptafolium digitalis eye drops. If the pain is obvious, pressure on the area to see if there is redness and swelling as well as hard nodules may be the early onset of mydriasis. If the eye pain is persistent and accompanied by blurred vision and iris vision, it is necessary to exclude glaucoma and go to the ophthalmology department for eye pressure and fundoscopy.