Measuring Temporal and Spatial Variability of Red Blood Cell Velocity in Human Retinal Vessels.

ABSTRACT:

Purpose

The retinal circulation regulates blood flow through various internal and external factors; however, it is unclear how locally these factors act within the retinal microcirculation. We measured the temporal and spatial variability of blood velocity in small retinal vessels using a dual-beam adaptive optics scanning laser ophthalmoscope.

Methods

In young healthy subjects (n = 3), temporal blood velocity variability was measured in a local vascular region consisting of an arteriole, capillary, and venule repeatedly over 2 days. Data consisted of 10 imaging periods separated into two sessions: (1) five 6-minute image acquisition periods with 30-minute breaks, and (2) five 6-minute image acquisition periods with 10-minute breaks. In another group of young healthy subject

SUBMITTER: Warner RL 

PROVIDER: S-EPMC8648047 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature