Brinchmann-Hansen O, Sandvik L
Acta Ophthalmol (Copenh). 1986 Aug;64(4):433-8. doi: 10.1111/j.1755-3768.1986.tb06948.x.
A computerized microdensitometric technique was applied to fundus photographs of 40 young male subjects. The width of the blood column and the width of the central light reflex were measured on 240 arteries and 240 veins of various sizes. No light streaks were registered on vessels of caliber less than 50 micron. The ratio of the widths: light streak/blood column showed wider reflexes on small (less than 100 micron) compared to larger (greater than or equal to 100 micron) vessels in both arteries and veins (P less than 0.01). Small retinal veins had wider light streaks than small arteries (P less than 0.01). The results of these objective measurements are partly in conflict with previous ophthalmoscopic observations, and we challenge accepted views on clinical interpretation on reflectivity differences in normal retinal vessels. Our results are discussed on a background of hemodynamics of microcirculatory flow.
一种计算机化的显微密度测定技术应用于40名年轻男性受试者的眼底照片。在各种大小的240条动脉和240条静脉上测量了血柱宽度和中央光反射宽度。在直径小于50微米的血管上未记录到光条纹。宽度比：光条纹/血柱显示，在动脉和静脉中，小血管（小于100微米）的反射比大血管（大于或等于100微米）更宽（P<0.01）。小视网膜静脉的光条纹比小动脉更宽（P<0.01）。这些客观测量结果部分与先前的检眼镜观察结果相冲突，并且我们对正常视网膜血管反射率差异的临床解释的公认观点提出质疑。我们的结果在微循环血流动力学的背景下进行了讨论。
