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Article
April 1961

Vascular Pressure Relationships and the Intraocular Pressure

Author Affiliations

Bethesda, Md.
From the Ophthalmology Branch, National Institute of Neurological Diseases and Blindness, National Institutes of Health, Public Health Service, U.S. Department of Health, Education, and Welfare.

Arch Ophthalmol. 1961;65(4):571-574. doi:10.1001/archopht.1961.01840020573021
Abstract

The intraocular pressure of the eye had been previously reported to be related to the anterior ciliary and vortex venous pressure; however, no relationship has been found between the normal eye pressure and systemic blood pressure. On the other hand, it is well known that acute changes of blood pressure produce parallel changes of eye pressure. It would appear, therefore, that some slowly compensating mechanisms exist to explain the lack of correlation of intraocular pressure (IOP) and systemic blood pressure (B.P.). The two most likely possibilities for this are alterations of aqueous humor dynamics (inflow and outflow), and/or vascular pressure dissociations occurring somewhere between the heart and the exit veins of the eye. The latter possibility, of vascular dynamics, was explored and is the subject of this report.

To determine pressure correlations between adjacent arterial systems, measurements were made to correlate (1) systemic blood pressure and ophthalmic artery pressure, (2)

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