It may be caused by physiological reasons, such as prolonged mental tension, stress and lack of sleep. If the symptoms last for a long time, intracranial organic lesions should be excluded, such as cranial tumors, which may be caused by pressure on the nerves in the eyes. If there is an intracranial aneurysm compressing the nerve, the patient can also develop the above symptoms, and if necessary, cranial MRI plus angiography should be examined to clarify. If the patient has a physiological cause, it may also be caused by long-term heavy alcohol consumption, which can be treated with medication, such as oral carbamazepine, and the patient should be instructed to relax, reduce stress, and improve sleep. If it is caused by intracranial organic lesions, the main treatment is etiology.