The causes of dizziness and unconsciousness of the head and difficulty in seeing with the eyes include cerebral hemorrhage, cerebral infarction, hypertension, iron-deficiency anemia, causes of vision, ischemic cerebrovascular disease, intracranial space-occupying lesions, and so on. 1. Cerebrovascular disease: it may be related to increased intracranial pressure and compression of the optic nerve in the acute stage, and insufficient blood supply to the ophthalmic artery and central retinal artery. 2. Hypertension: Hypertension leads to cerebral vasospasm and other causes of insufficient blood supply to the brain, resulting in dizziness and lack of clarity, and symptoms such as blurred vision. 3. Iron deficiency anemia: due to the lack of blood and oxygen to the brain, the patient will have symptoms such as dizziness and blurred vision. 4. Vision: eye refractive problems, such as nearsightedness, farsightedness, etc. may appear dizziness, and the eyes can not see clearly and other symptoms. 5. Intracranial space-occupying lesions: for example, intracranial tumors, causing cerebral edema leading to dizziness and blurred vision. Persistent dizziness and blurred vision require prompt medical attention for a clear diagnosis, and medications should be used under the guidance of a doctor.