Forcier P, Kergoat H, Lovasik J V
Ecole d'optométrie, Université de Montréal, Centre-Ville, Québec, Canada.
Vision Res. 1998 Jan;38(1):181-6. doi: 10.1016/s0042-6989(97)00147-8.
We investigated the effects of vigorous exercise on blood flow in the macular vasculature. The velocity and density of entoptically viewed leukocytes in the paramacular retinal capillaries were measured with an Oculix BFS-2000 blue field simulator in 18 healthy adults first at rest, and then after 20 min of exercise. Exercise typically increased the density of leukocytes with more variable effects on their velocity. When leukocyte velocity and density were factored together, macular blood flow increased only marginally after exercise. We conclude that retinal blood flow in the macula is subject to the influence of autoregulatory mechanisms presumably to sustain normal central visual function during increased systemic blood flow.
我们研究了剧烈运动对黄斑区脉管系统血流的影响。使用Oculix BFS - 2000蓝域模拟器，对18名健康成年人在静息状态下以及运动20分钟后黄斑旁视网膜毛细血管内视见白细胞的速度和密度进行了测量。运动通常会增加白细胞密度，对其速度的影响则更具变异性。当综合考虑白细胞速度和密度时，运动后黄斑区血流仅略有增加。我们得出结论，黄斑区的视网膜血流受到自动调节机制的影响，推测这是为了在全身血流增加时维持正常的中心视觉功能。
