Synonym: Transient loss of vision
German: Amaurosis fugax
Amaurosis fugax is defined as a transient visual disorder, which is caused by circulatory problems of the retinal vessels.
2 Etiology and clinical presentation
In most cases, the cause is a sudden unilateral occlusion of the central retinal artery (retinal ischemia) with a subsequent painless loss of vision.
Frequent causes include:
3 Diagnostics and therapy
Amaurosis fugax is basically self-limiting. However, it should be regarded as a warning sign for the underlying disease. You should absolutely proceed with further diagnostics (Doppler sonography, echocardiography, rheumatism serology).
In cases of known temporal arteritis, you have to start a prednisolone short-term therapy to prevent permanent blindness.