视网膜静脉阻塞后视网膜缺血的研究现状

Current Research Status of Retinal Ischemia After Retinal Vein Occlusion

视网膜循环的血管结构特征是独特的,视网膜静脉阻塞(RVO)是眼科最常见的疾病之一,其病理变化和机制也得到广泛研究,缺血性在RVO的两种主要类型:视网膜中央静脉阻塞(CRVO)和视网膜分支静脉阻塞(BRVO),后者更为普遍。但BRVO通常发生在动静脉交叉处,在大多数情况下,动脉在静脉前通过。RVO是一种复杂的视网膜血管疾病,通常会导致严重的视力障碍,而RVO的另一种类型是半静脉闭塞,表现为仅视网膜中央静脉的一条干线闭塞。本文主要论述视网膜微循环的组织、生理及病理基础,病理变化及其机制,缺血评估手段对静脉阻塞的指导意义及治疗。

The vascular structure of the retinal circulation is unique,and retinal vein occlusion(RVO)is one of the most common diseases in ophthalmology.Its pathological changes and mechanisms have also been extensively studied.In the two main types of RVO,ischemia is central retinal vein occlusion(CRVO)and branch retinal vein occlusion(BRVO),the latter being more common.However,BRVO usually occurs at the intersection of arteries and veins.In most cases,the arteries pass in front of the veins.RVO is a complex retinal vascular disease that usually leads to severe visual impairment,while another type of RVO is hemivenous occlusion,which manifests as occlusion of only one trunk of the central retinal vein.This article mainly discusses the tissue,physiology and pathological basis of retinal microcirculation,pathological changes and their mechanisms,and the guiding significance and treatment of ischemia assessment methods for vein occlusion.