The symptoms of black eyes and dizziness should be considered for the following reasons: 1. If a middle-aged or elderly person has a history of cerebral atherosclerosis or cerebrovascular stenosis, the black eyes and dizziness should be considered to be caused by ischemia in the internal carotid artery system, which is caused by a number of factors, usually when the patient is tired, stressed or sleep deprived, which induces spasm in the narrowed cerebral vessels. If this condition is not relieved for a long time, it will easily progress to cerebral infarction of the internal carotid artery system, so it must be actively examined and treated. 2. If a young person has the symptoms of dizziness with a black eye, it is related to the patient’s mental tension, high stress or excessive changes in movement and position.