Alertness in transient visual disturbances of one eye

TIA is a brief and transient ictal symptom due to a local disturbance of cerebral or ocular arterial circulation. Transitory blindness or blurred vision in one eye (amaurosis fugax) is a sudden TIA symptom lasting a few minutes, usually underlied by thromboembolism originating from an atherosclerotic plaque of the internal carotid artery, less frequently an embolus from the aorta or the heart, or localized thrombosis of vessels of the optic nerve or the retina. We describe two amaurosis fugax patients.