Relationship of spontaneous retinal vein pulsation with ocular circulatory cycle.

ABSTRACT:

Purpose

To determine the timing of spontaneous venous pulsation (SVP) relative to the ocular circulatory cycle by using the movie tool of confocal scanning laser ophthalmoloscope.

Methods

A video recording of the fundus was obtained using a confocal scanning laser ophthalmoscope (Spectralis HRA, Heidelberg Engineering, Heidelberg, Germany) at 8 frames/s in 47 eyes (15 glaucoma patients and 32 glaucoma suspects) with visible pulsation of both the central retinal artery (CRA) and vein (CRV). The timing of the maximum and minimum diameters of the CRA (CRA(max) and CRAmin, respectively) and CRV (CRV(max) and CRV(min), respectively) was identified during four pulse cycles. The interval between CRV(min) and CRA(min), and between CRV(max) and CRA(max) was expressed as the number of

SUBMITTER: Kim M 

PROVIDER: S-EPMC4028232 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature