The vascular supply of the optic nerve head is complex and remains incompletely delineated. Over the past 50 years, various investigators have attempted to clarify the relative contributions of the choroid, the short posterior ciliary arteries and the central retinal artery to the vascular beds of the inner retinal, prelaminar, laminar and retrolaminar segments of the nerve head. Conflicting theories have evolved, in no small part due to differing techniques of study, involving both flow parameters and anatomical constructs. These have included studies, both in normal subjects and in those with optic nerve ischaemia, of histopathology, electron microscopic corrosion casting, orbital colour Doppler flow studies, fluorescein angiography, indocyanine green angiography, laser Doppler flow studies, laser speckle flowgraphy, microperfusion and labelling studies and optical coherence tomography angiography. The nature of the optic disc, peripapillary retina and choroid microvasculature has implications for the pathophysiology of ischaemic optic neuropathy. No data are available.

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视神经乳头的血管供应：对视盘缺血的影响

视神经乳头的血管供应很复杂，而且仍未完全描绘。在过去的 50 年里，各种研究人员试图阐明脉络膜、睫状后短动脉和视网膜中央动脉对神经乳头视网膜内、层前、层状和层状后段血管床的相对贡献。相互矛盾的理论已经演变，在很大程度上是由于不同的研究技术，涉及流动参数和解剖结构。这些包括在正常受试者和视神经缺血患者中进行的组织病理学研究、电子显微镜腐蚀铸造、眼眶彩色多普勒血流研究、荧光素血管造影术、吲哚菁绿血管造影术、激光多普勒血流研究、激光散斑血流图、微灌注和标记研究以及光学相干断层扫描血管造影。视盘、视盘周围视网膜和脉络膜微血管系统的性质对缺血性视神经病变的病理生理学有影响。没有可用数据。