The common causes of dizziness and eye swelling may be the following: 1, inadequate blood supply based on diseases such as atherosclerosis and hypertension: In particular, inadequate blood supply to the blood vessels in the head can cause dizziness, and inadequate blood supply to the vascular branches of the eyes can cause eye swelling, eye pain, black eyes, gold stars in the eyes, and even symptoms such as flying mosquitoes. Therefore, dizziness and eye distension may be one of the symptoms of insufficient blood supply to the brain, and should be promptly consulted, and appropriate tests should be done, such as cerebral hemogram, ultrasound, brain CT, blood pressure monitoring, etc., for causal treatment; 2, glaucoma: it can cause increased intraocular pressure, eye distension and pain, and eye distension will be accompanied by dizziness, headache, nausea, vomiting and other symptoms, which are often more obvious during acute attacks of glaucoma. Patients should go to the ophthalmology department to measure the intraocular pressure and control it in time to prevent high intraocular pressure from causing optic nerve damage and other pathologies.