近年来,由于脉络膜循环障碍所引起的三角形脉络膜病变(triangular shaped choroidal alterations)已引起人们的注意。1971年Amalric首次报告因后睫状动脉阻塞引起的三角形脉络膜萎缩,并列举其原因有先天性、全身血管病变及外伤等。其后的文献记载多由外伤、特别是顿挫伤引起脉络膜循环障碍,而呈现以眼底后极部为顶点的三角形视网膜脉络膜萎缩,故称之为外伤性三角综合征(traumatic triangular syndrome)。一、脉络膜血管系统的解剖外伤性三角综合征的解剖学基础是脉络膜血管系统的特殊结构。古典教科书中描写脉络膜血管系统时,认为所有睫状短动脉的分枝之间存在着广泛的相互吻合,故一个血管的闭塞,一般并不产生脉络膜梗死。然而脉络膜炎症、转移性肿瘤与变性等病变通常呈局限性,这也是众所周知 In recent years, triangular shaped choroidal alterations caused by circulatory disorders of the choroid have drawn people’s attention. In 1971, Amalric first reported triangular choroidal atrophy caused by posterior ciliary artery obstruction, and cites the causes of congenital, systemic vascular lesions and trauma. Subsequent literature records more by trauma, especially contusion caused by choroidal circulation disorders, and presented to the posterior pole of the vertex of the triangle retinal choroidal atrophy, it is called traumatic triangular syndrome (traumatic triangular syndrome). Anatomy of the choroidal vascular system The anatomic basis of traumatic triangular syndrome is the special structure of the choroidal vascular system. Classical textbooks depicting the choroidal vascular system, that all branches of the ciliary short aorta there is a wide range of mutual agreement, it is a vascular occlusion, and generally does not produce choroidal infarction. However, choroidal inflammation, metastatic tumors and degeneration and other lesions are usually limited, which is also well known