论文部分内容阅读
视网膜局部缺血为眼科严重的致盲性病变之一。主要由视网膜中央动脉及其分支或视网膜睫状动脉的急性梗阻而引起。长期以来,对其病理机制,缺血持续时间对视网膜功能的影响,尤其是产生不可逆损伤的时间限度,一直为人们所关注。近十余年内,随着眼底血管荧光造影、电子显微镜等现代技术的应用,对视网膜局部缺血的研究取得了重要的进展。本文着重讨论视网膜局部缺血的病因,病理机制,主要眼底表现(包括眼底血管荧光造影)及其视力预后问题。
Retinal ischemia is one of the most serious blinding lesions in ophthalmology. Mainly caused by the acute obstruction of the central retinal artery and its branches or the retina ciliary artery. For a long time, its pathological mechanism, the duration of ischemia on retinal function, especially the time limit to produce irreversible damage, has been of concern. In recent ten years, with the fundus fluorescein angiography, electron microscopy and other modern technologies, research on retinal ischemia has made important progress. This article focuses on the etiology of retinal ischemia, pathological mechanisms, the main fundus manifestations (including fundus fluorescein angiography) and its vision problems.