IOVS Physiological Reviews
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text (PDF)
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Armaly, M. F.
Right arrow Articles by Araki, M.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Armaly, M. F.
Right arrow Articles by Araki, M.

Investigative Ophthalmology & Visual Science, Vol 14, 724-731, Copyright © 1975 by Association for Research in Vision and Ophthalmology

ARTICLES AND REPORTS

Optic nerve circulation and ocular pressure

MF Armaly and M Araki

Rapid, short-lasting elevation of ocular pressure level produces simultaneous reduction in blood-flow rate in the distal 6 mm. of the extraocular portion of the optic nerve of the rhesus monkey as monitored by the heated thermocouple technique. The magnitude of this reduction was very small until intraocular pressure (IOP) exceeded 50 mm. Hg following which markedly and progressively greater reduction in blood-flow rate occurred at higher IOP levels; maximum reduction was reached at IOP of 105 mm. Hg. The magnitude of reduction in blood-flow rate for each ocular pressure level was significantly greater when systemic arterial pressure was reduced. These effects were monitored 2 to 4 mm. behind the globe and became reduced at a more proximal location, disappearing at locations further than 6 mm. from the globe. The results suggested a reduction in nutrient blood flow to the optic nerve at the monitored site with elevation of IOP.


This article has been cited by other articles:


Home page
 IOVSHome page
S. H. Hardarson, A. Harris, R. A. Karlsson, G. H. Halldorsson, L. Kagemann, E. Rechtman, G. M. Zoega, T. Eysteinsson, J. A. Benediktsson, A. Thorsteinsson, et al.
Automatic Retinal Oximetry
Invest. Ophthalmol. Vis. Sci., November 1, 2006; 47(11): 5011 - 5016.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1975 by the Association for Research in Vision and Ophthalmology