Patients with black eyes and dizziness are mainly seen in syncope and transient cerebral ischemia, as follows: First, syncope: syncope is mainly seen in patients with sudden changes in position, resulting in low intracranial blood pressure, transient ischemia and hypoxia in the brain, and insufficient perfusion of the brain. Therefore, black eyes, dizziness and lightheadedness can occur, which is one of the most common causes, mainly seen in the elderly and frail people, and some women, standing for too long can trigger the above phenomenon. Second, transient cerebral ischemia: be alert to the presence of transient cerebral ischemic attack, transient cerebral ischemic attack is also called mini-stroke, mostly seen in middle-aged and elderly friends. Patients usually have hypertension, diabetes, hyperlipidemia, and it is recommended that patients go to the neurology department of the hospital for a clear diagnosis.