Bleeding in one eye is not usually associated with cardiovascular disease. Bleeding from a single eye may be caused by trauma to the eye, retinal artery obstruction or capillary dilatation, retinoblastoma, and other diseases that result in rupture of retinal blood vessels and hemorrhage in the fundus of the eye. Cardiovascular diseases, such as ischemic heart disease, rheumatic heart disease, hypertensive heart disease, etc., may lead to chest tightness, palpitations, fatigue, dizziness, vomiting and other discomforts, but generally do not cause the symptoms of bleeding in one eye. When the symptom of bleeding from one eye occurs, it is recommended to go to the hospital in time, complete the relevant examinations under the guidance of the doctor, and treat the disease after clarifying the cause.