弥漫性亮度闪烁会增加视网膜主要动脉和静脉的血流量。
Diffuse luminance flicker increases blood flow in major retinal arteries and veins.
作者信息
Garhöfer G, Zawinka C, Resch H, Huemer K H, Dorner G T, Schmetterer L
机构信息
Department of Clinical Pharmacology, Vienna General Hospital, University of Vienna, Währinger Gürtel 18-20, Vienna A-1090, Austria.
出版信息
Vision Res. 2004 Apr;44(8):833-8. doi: 10.1016/j.visres.2003.11.013.
It has been shown that diffuse luminance flicker increases optic nerve head blood flow. The current study has been performed to quantify changes in retinal blood flow during flicker stimulation. In a group of 11 healthy volunteers, red blood cell velocity and retinal vessel diameters were assessed with bi-directional laser Doppler velocimetry and the Zeiss retinal vessel analyzer before, during and after stimulation with diffuse luminance flicker. Retinal blood flow was calculated for each condition. Flicker stimulation increased retinal blood flow by +59 +/- 20% (p<0.01) in arteries and by +53 +/- 25% (p<0.01) in retinal veins. These results demonstrate that diffuse luminance flicker increases retinal blood flow in the human retina.
研究表明，漫射亮度闪烁会增加视神经乳头血流量。本研究旨在量化闪烁刺激期间视网膜血流量的变化。在一组11名健康志愿者中，在漫射亮度闪烁刺激前、刺激期间和刺激后，使用双向激光多普勒测速仪和蔡司视网膜血管分析仪评估红细胞速度和视网膜血管直径。计算每种情况下的视网膜血流量。闪烁刺激使视网膜动脉血流量增加了+59±20%（p<0.01），视网膜静脉血流量增加了+53±25%（p<0.01）。这些结果表明，漫射亮度闪烁会增加人类视网膜的血流量。
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