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Reversed ophthalmic Doppler signal: a study of its significance.

Authors
Type
Published Article
Journal
Clinical Neurology and Neurosurgery
0303-8467
Publisher
Elsevier
Publication Date
Volume
86
Issue
1
Pages
13–16
Identifiers
PMID: 6325064
Source
Medline
License
Unknown

Abstract

The pathophysiological significance in carotid artery stenoses of a collateral circulation via the external carotid and ophthalmic arteries is investigated with the use of three non-invasive techniques: Doppler ultrasonography, ophthalmodynamometry and ophthalmodynamography . 21 Carotid arteries with and 26 without a stenosis greater than 50% at angiography are studied. Finding a reversed flow direction in the ophthalmic artery points towards a low pressure in the carotid syphon and indicates that the patient is, hemodynamically speaking, in danger. This concerns the cerebral as well as the retinal circulation.

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