[Doppler ultrasonographic velocimetry of the central retinal artery and central retinal vein].

A blood flow rate in the arteria and vena centralis retinae was measured by Doppler-ultrasonographic method in a group of 36 patients of an average age of 59.35 years. The patients did not suffer any cardiovascular disease, glaucoma, diabetes mellitus-factors which influence the blood viscosity. In the arteria centralis retinae, there was measured a maximum systolic rate of 10.25 +/- 2.66 cm/s and a end diastolic rate of 5.24 +/- 1.27 cm/s. In the vena centralis retinae, there was measured an average maximum flow rate of 5.89 +/- 1.72 cm/s and end diastolic rate of 4.1 +/- 1.28 cm/s (minimum 2.12; maximum 6.2 cm/s). A procedure of examination and terms of its optimalisation are described there.