Abstract
Transient monocular blindness (TMB) is caused by a temporary reduction of blood flow
to the retina or optic nerve. Even though embolism from the ipsilateral carotid artery
has been considered the main mechanism of TMB, the vascular pathology remains unknown
in many patients. A 42-year-old man presented with recurrent transient visual loss
in the left eye for 2 months. The attacks tended to develop more frequently when his head was bent down.
Fluorescence angiography during an attack revealed hypoperfusion of the left central
retinal artery (CRA) and cerebral angiography documented a focal isolated stenosis
of the CRA at the origin. Aspirin and nimodipine reduced the attacks markedly. Stenosis
of the CRA may be a cause of TMB. Intermittent vasospasm in addition to static hypoperfusion
may have caused TMB in our patient with isolated CRA stenosis.
Keywords
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Article info
Publication history
Accepted:
September 23,
2012
Received:
September 19,
2012
Identification
Copyright
© 2013 Elsevier Ltd. Published by Elsevier Inc. All rights reserved.
