G45: Transient cerebral ischaemic attacks and related syndromes

G45.3: Amaurosis fugax

Amaurosis fugax, also known as "temporary blindness", is a medical condition characterized by abrupt and brief episodes of vision loss, typically in one eye. These episodes can last from a few seconds to a few minutes before vision fully returns. Amaurosis fugax is often a symptom of a more significant issue related to blood flow, and it can be a warning sign of potential stroke. This occurs when the blood supply to the eye or the part of the brain that controls vision is temporarily blocked, often caused by a tiny clot or particle of plaque in the blood vessels. Common symptoms, aside from temporary vision loss, may include seeing 'flashes' or 'flickers' in the visual field. In terms of disease progression, it's possible to experience sporadic episodes of amaurosis fugax or it can indicate a more constant issue that needs to be addressed. It primarily affects the visual system with episodes of vision disruptions.