There are many causes of dizziness and blurred vision, the common causes are mainly the following: first, postural hypotension, mostly seen in long squatting after getting up when dizziness and blurred vision, is due to long squatting after the blood is mostly concentrated in the lower part of the body, get up instantly blood can not supply the brain, resulting in transient ischemia and hypoxia of the brain, resulting in dizziness and blurred vision, taking raw pulse drink can be symptomatic treatment. Second, cerebral vasospasm, considered to be caused by persistent constriction of intracranial arteries, mostly seen in patients with hypertension and diabetes, mainly manifested as dizziness, unstable walking, and in severe cases can cause limb movement disorders, cerebral angiography can be clearly diagnosed, taking ciprolin capsules, nimodipine tablets, can relieve cerebral vasospasm and improve symptoms. Third, transient cerebral ischemic attack is considered to be caused by transient insufficiency of blood supply in the vertebrobasilar artery, mainly manifested as transient dizziness and unsteadiness in walking, and the symptoms do not exceed half an hour, and triclopidine can be taken to dilate cerebral blood vessels and treat the symptoms.