Definition

• Fleeting blindness

• Emboli from carotid
• Cardiac emboli
• Choroidal or retinal vascular spasm (especially younger patients)
• Severe occlusive carotid disease
• Aortic dissection
• Increased intracranial pressure (more transient, bilateral)
• Takayasu's arteritis
• Hyperviscosity, e.g., polycythemia vera, leukemia, Waldenström's macroglobulinemia

• Acute visual loss
• Stroke