Eye fatigue is usually caused by dry eye, cataract and overuse of eyes, etc. It needs to be handled accordingly according to the different causes. When the symptoms of eye fatigue cannot be relieved by resting, it is recommended to consult a doctor in time. 1. Dry eye: Dry eye is often accompanied by dryness, burning sensation and visual fatigue and other symptoms. Patients can take oral medication to promote tear secretion, such as Hirsutine, for relief. 2. Cataract: Early symptoms of cataract are blurred vision, eye fatigue, occasional black shadows or double vision. Patients can take oral vitamin C tablets, vitamin E capsules and vitamin B2 for relief. 3. Excessive eye use: Prolonged close eye use leads to spasm of ciliary muscle over-contraction, which is also prone to visual fatigue. Generally do not need oral medication, should pay attention to the rest of the eyes, relaxation, reasonable use of the eyes, if necessary, can follow the doctor’s instructions to apply artificial tears to relieve the symptoms of dry eyes. There are many causes of eye fatigue, rest can not be relieved, the patient should go to the regular hospital ophthalmology for consultation, do not blindly use drugs to avoid adverse consequences.