Effect of ocular pressure on choroidal circulation in the cat and Rhesus monkey.
Using the heated thermocouple principle to monitor blood flow-rate in the choroid of the anesthetized cat and Rhesus monkey revealed that elevation of ocular pressure reduces blood flow-rate in the choroidal circulation. The magnitude of this effect at varying levels of ocular pressure led to the conclusion that the vascular bed of the choroid in these experimental animals is a passive one without evidence of active regulation.
D000818:Animals; D001783:Blood Flow Velocity / Q000295:instrumentation; D002415:Cats; D002829:Choroid / Q000098:blood supply*; D055590:Electromagnetic Phenomena; D005260:Female; D006706:Homeostasis; D007429:Intraocular Pressure; D008253:Macaca mulatta; D008297:Male; D008722:Methods; D012039:Regional Blood Flow; D013814:Thermal Conductivity