The common causes of sudden blurred eyes and migraine are as follows: 1. It may be transient cerebral ischemic attack, the patient’s symptoms usually last for several minutes to tens of minutes and then relieve by themselves, mostly seen in middle-aged and elderly people, most patients have a history of hyperlipidemia, diabetes and hypertension, if it occurs frequently, anti-platelet aggregation medication should be given and the patient’s underlying disease should be controlled. 2. It may also be organic brain Lesions, such as cerebral hemorrhage and cerebral infarction, can also occur in patients with cranio-cerebral tumors, check cranial CT or cranial MRI for clear diagnosis if necessary, patients with cerebrovascular disease should be admitted to neurology for comprehensive treatment, patients with brain tumors can be admitted to oncology for treatment. 3, if the patient has lesions of the eye itself, it may also cause, if necessary, go to ophthalmology for detailed consultation and treatment. 4, in addition If the patient has blurred eyes, it may also be caused by ischemic changes in the eyes, mostly caused by lesions of blood vessels.