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Conferences > VSIA > 1996 > ThC > ThC.3

Effect of Cold Provocation on the Visual Fields of Subjects with Raynaud’s Phenomenon and Normal Controls

Balwantray C. Chauhan, Rajinder S. Rathee, Dianne Mosher, Charles E. Maxner, Christine A. MacDonald, and Terry A. McCormick

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Abstract

Vasospasm is defined as contraction or hypertonia of the muscular coats of blood vessels. It may result in decreased blood flow to perfused tissues followed by reversible ischemia of varying severity. Vasospasm is present and believed to be a pathogenetic factor in many diseases such as Raynaud’sphenomenon, migraine, and Prinzmetal’s variant angina.1 Cold is known to provoke spasm, as are nicotine and emotional or physical stress.

© 1996 Optical Society of America

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