The patient, male, 49 years old, was admitted to our hospital due to “blurred vision for 3 days worse than before”.3 days prior to the hospital patients with no obvious incentives in his eyes to the left side is not clear from the previous increase, with the right side of the headache, obscures vision is characterized by absence of vision to the left of both eyes, walk tilt, easy to hit objects, the right side of the headache is acerbity keenly feel, at that time did not attach importance to it, not treatment, no obvious improvement in symptoms, then to the hospital emergency line head CT no bleeding, “Cerebrovascular disease” was included in the Department of Neurology. During the course of onset, there was no dizziness, nausea and vomiting, palpitation or feeling of stepping on cotton. Since the onset of the disease, Poor spirit, poor sleep, good diet, normal defecation.