Robert Y
Department of Ophthalmology, University of Zürich, Switzerland.
Int Ophthalmol. 1989 Jan;13(1-2):15-9. doi: 10.1007/BF02028631.
The author explains the difficulties of a topographical quantification of papillary changes. On the one hand this is due to the unprecise definition of the papilla's boundaries, on the other hand these boundaries might themselves fluctuate. Afterwards a description of the dynamic provoked circulatory response follows. This is an examination which tests the change of redness of the rim when the intraocular pressure is artificially risen. Two properties of the vascular system of the papilla are checked with it. When looking at the 'latency time', the time which elapses between beginning of the provocation and beginning of pallor increase, the vascular resistance is controlled. When measuring a decrease of pallor while increasing the intraocular pressure autoregulation of the papillary capillaries are tested. The dynamic provoked circulatory response is the only clinically available test of the papilla's vascular system.
作者解释了对乳头变化进行地形学量化的困难。一方面，这是由于乳头边界定义不精确，另一方面这些边界本身可能会波动。随后描述了动态激发的循环反应。这是一项在眼压人为升高时测试边缘发红变化的检查。通过这项检查可以检测乳头血管系统的两个特性。观察“潜伏时间”，即激发开始到苍白增加开始之间经过的时间，可以控制血管阻力。在眼压升高时测量苍白程度的降低，以此测试乳头毛细血管的自动调节功能。动态激发的循环反应是临床上唯一可用于检测乳头血管系统的检查。
