The complex microstructures of optic nerve head(ONH)can be observed in vivo with the development of optical co-herence tomography,which deepens the acknowledgement of many clinical entities.This article elucidates the observable microstruc-tures of ONH such as the marginal tissues of Elschnig and their clinical applications.The etiology,pathophysiological mechanism,nom-ination,differential diagnosis and prognosis of optovenous collateral is explored and analyzed in depth based on description of blood supply of ONH.(Ophthalmol CHN,2024,33:321-328)
关键词
视神经头部/Elschnig边缘组织/视盘静脉侧支/视盘新生血管
Key words
optic nerve head/the marginal tissues of Elschnig/optovenous collateral/optic disc neovascularization