Cerebral infarction can open the eyes but the eyes do not rotate with the sound, the patient shows a state of unconsciousness, the patient is in a state of coma, many patients with cerebral infarction will have this performance, in clinical terms, also called open-eye coma. The cause of coma is mainly due to extensive damage to the cerebral hemispheres or the brainstem. The function of the brainstem reticular superior activation system is to supervise the consciousness activities of the human body, and when there is infarction in this part, the patient will be in a coma; the eyes of patients with cerebral infarction can open and close at will, but the eyes do not rotate with the sound, and they are in a coma state.