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(Investigative Ophthalmology and Visual Science. 1973;12:332-334.)
© 1973 by The Association for Research in Vision and Ophthalmology, Inc.

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Control of intraocular blood flow.: II. Effects of sympathetic tone

JOHN J. WETTER 1, RONALD A. SCHACHAR 1, and J. TERRY ERNEST 1

1 Eye Research Laboratories, The University of Chicago Chicago, Ill. 60637

The effects of sympathetic tone on ocular blood flow have not been adequately studied in the past. Recent experimental work has contradicted earlier observations. We have used nuclidelabeled microspheres to measure the intraocular blood flow. The results of the study demonstrate that the ocular vascular beds are responsive to sympathetic tone. Cervical sympathectomy increased ocular blood flow, and sympathetic stimulation caused a decreased blood flow

Key Words: sympathectomy • sympathetic stimulation • intraocular blood flow • nuclide-labeled microspheres • sympathetic vasomotor tone

Submitted on December 27, 1972
Accepted on March 7, 1973




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