Sleepy and painful eyes may be caused by over-fatigue, chronic inflammation, dry eyes and other reasons. 1. Overfatigue: frequent overuse of computers, cell phones and other electronic products, or often stay up late, etc., can cause eye fatigue, which can lead to dry, sleepy and painful eyes. 2. Chronic inflammation: long-term chronic inflammatory stimulation of the eye and other reasons lead to the secretion of tears glands, so that the eye tear secretion is insufficient, resulting in the cornea and conjunctival tissues lack of intact tear film protection and lubrication, there will be dry eyes, tingling, sleepy and other symptoms. 3. Dry eyes: due to the secretion of tears is too little, resulting in tear film instability, which causes dry eyes, soreness and swelling sensation, and the phenomenon of sleepy and painful eyes. Patients should pay attention to rest and avoid staying up late. If your eyes are sore for a long time, go to the ophthalmology department of the regular hospital for examination, clarify the cause of the disease, and carry out targeted treatment.