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“脉络膜血管性缺血”,这个术语将所有的因脉络膜动脉的毛细血管或静脉网的急性或慢性循环障碍所致的脉络膜-视网膜改变都包括在内。依据血管的阻塞类型、起因和病程的发展速度,可以观察到不同的临床综合征。动物实验,尤其是对猴的局限性视网膜色素沉着的观察,使我们能够研究脉络膜血循环的解剖及光凝后毛细血管栓塞或血栓形成所致的脉络膜缺血性改变。这些实验都伴有组织化学、生物电和基因方面的检查。过去二十年,血管造影术已被用于研究脉络膜循环,不过只有心绿素和荧光素是有用的。
Choroidal Vascular Ischemia, the term that includes all choroidal-retinal changes caused by acute or chronic circulatory disorders of the choroidal or venous network of the choroidal artery. Depending on the type of vascular obstruction, the cause and the rate of progression, different clinical syndromes can be observed. Animal experiments, especially the observation of localized monkey retinal pigmentation, allowed us to study the anatomy of the choroidal blood circulation and the choroidal ischemic changes caused by capillary embolism or thrombosis after photocoagulation. These experiments are accompanied by histochemical, bioelectric and genetic tests. Angiography has been used to study choroidal circulation for the past two decades, but only chlorophyll and fluorescein are useful.