Three presentations of monocular vision loss

These 3 presentations show that in patients older than 50 who present with chief complaints of monocular vision loss, a differential diagnosis of carotid artery disease must be considered. Patients who exhibit retinal arterial emboli are at increased risk for stroke and vascular death. Appropriate measures for confirming a diagnosis include duplex ultrasound imaging, magnetic resonance angiography (MRA), and carotid angiography. Surgical techniques such as carotid angioplasty and carotid endarterectomy may be recommended.