This article is more than 5 years old. Information may no longer be current.
Pulsatile ocular blood flow correlates with retinal, ciliary artery blood flow
Click Here to Manage Email Alerts
Pulsatile ocular blood flow significantly correlates with the blood flow velocities in the central retinal and temporal short posterior ciliary arteries, a study found.
"This result suggests that pulsatile ocular blood flow (POBF) determinations are influenced by the pulsatile components of both choroidal and retinal perfusion," the authors said.
Itay Ben Zion, MD, of the Indiana University School of Medicine, and colleagues used a tonograph to measure POBF in 22 eyes of 11 healthy subjects. Investigators also used color Doppler imaging to measure flow velocities in the ophthalmic, central retinal and temporal short posterior ciliary arteries.
The researchers found that POBF correlated with the peak systolic velocity of the central retina artery (P = .007), temporal short posterior ciliary artery (P = .02) and the resistive index of the temporal short posterior ciliary artery (P = .04). POBF measurements also correlated with pulse amplitudes in both arteries (P < .05), according to the study.
POBF was not correlated with any flow velocity indices in the ophthalmic artery, the authors noted.
The study is published in the July issue of the British Journal of Ophthalmology.