In general, mild visual fatigue can be recovered within 1 to 2 weeks, and recovery time for more severe visual fatigue is prolonged. If there is a primary disease, causative treatment is needed. Visual fatigue is usually caused by over-exertion of the eyes and improper use of the eyes, and can be manifested as blurred vision, photophobia and tearing. Mild visual fatigue can be recovered within 1~2 weeks through rest and hot compresses. If the visual fatigue is more serious, you can use drugs such as sodium vitrate eye drops, seven leaves of digitalis glycosides eye drops and so on to relieve. In addition, visual fatigue can be caused by other eye factors such as refractive errors, which can be corrected by refraction. It can usually be relieved after correction. If the visual fatigue is serious and does not improve, you should go to the hospital in a timely manner, and the use of medication should be in accordance with medical advice.