Relationship of Spontaneous Retinal Vein Pulsation with Ocular Circulatory Cycle

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. was expressed as the number of frames and as a percentage of the ocular circulatory cycle. (equivalent to 14.6% of the ocular circulatory cycle).During SVP, the diameter of the CRV began to decrease at early diastole, and the reduction persisted until early systole. This finding supports that CRV collapse occurs during ocular diastole