Blurred vision in migraine headaches consider a combination of organic brain disease, ophthalmologic disease, and ocular manifestations of migraine. Migraine headache may include one side of the headache symptoms and a disease called migraine headache. 1. Accompanied by organic brain disease: If the patient is combined with cerebral hemorrhage, cerebral infarction, intracranial malignant tumor, or traumatic brain injury, the brain cells may be damaged and the symptoms of headache on one side may appear, accompanied by blurred vision. Through CT or MRI examination, the location and nature of the lesion can be clarified and treated according to the cause of the disease. 2. Ophthalmologic diseases: For example, when glaucoma develops, the intraocular pressure increases, and the patient will have headache, blurred vision, nausea, vomiting and other symptoms. The patient should go to the ophthalmology department at the onset of the disease. 3. Migraine eye manifestations: migraine is a kind of primary headache, the onset of eye manifestations may occur, such as blurred vision, visual hallucinations and so on. When the blurred vision of migraine headache occurs, you can go to the neurology clinic of the hospital, improve the auxiliary examination to clarify the cause of the disease, and take reasonable treatment program under the guidance of the doctor.