脉络膜是眼部最富于血管的组织,具有眼部最大的血流量。在正常情况下,它为无血管的视网膜外层和黄斑区提供血液,对视功能的完成起重要作用。有关脉络膜微血管形态及生理、病理的研究,对于探讨多种眼底病的病因和发病机理,寻求治疗措施,均有重要意义。本文从脉络膜血管结构、脉络膜毛细血管的通透性、脉络膜血流量与血流分布以及脉络膜循环障碍等方面,综述了脉络膜循环的研究进展。 The choroid is the most vascular tissue in the eye with the largest blood flow in the eye. Under normal conditions, it provides blood to the avascular retinal and macular areas and plays an important role in visual function. Choroidal microvascular morphology and physiology, pathology, for exploring the etiology and pathogenesis of a variety of fundus diseases, seek treatment, are of great significance. This review summarizes the research progress of choroidal circulation from the aspects of choroidal blood vessel structure, the permeability of choroidal capillary, choroidal blood flow, blood flow distribution and choroidal circulation disorder.