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WILLIAM A. SCHLEGEL, CARTERET LAWRENCE; Doppler Measurement of Vortex Vein Blood Flow in Animals. Invest. Ophthalmol. Vis. Sci. 1969;8(2):201-205.
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The blood flow icas measured continuously in the intact vortex vein of the anesthetized rabbit using an ultrasonic Doppler flowmeter toith a frequency response of approximately 4 Hz. Blood flow correlated well toith perfusion pressure (arterial pressure minus intraocular pressure). The intraocidar pressure was changed stepwise by peifusion from a saline reservoir. Tonometry toas performed with the eye connected to the reservoir and with the valve to the reservoir closed. Blood flow decreased with decreasing perfusion pressure in all cases.
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