青光眼是一组以视神经萎缩和视野缺损为共同特征的疾病，是全球范围内主要致盲性眼病之一，近年来随着检查技 术的进一步提高，青光眼的检出率日益提高。光相干断层扫描血管成像术是基于检测血流来构建视网膜血管网图像的一种 无侵入性快速成像方式，能够提供视网膜和脉络膜血流灌注系统的三维成像。并可同时对血流变化与视网膜神经纤维层、 神经节细胞层厚度变化之间的关系进行严谨的循证研究。对评估早期青光眼的损伤提供了良好的诊疗前景。

Glaucoma is a group of diseases characterized by optic nerve atrophy and visual field defect. It is one of the major blinding eye diseases in the world. In recent years, with the further improvement of examination technology, the detection rate of glaucoma is increasing day by day. Optical coherence tomography angiography is a non-invasive and rapid imaging method based on blood flow detection to construct retinal vascular network images, which can provide three-dimensional imaging of retinal and choroidal blood perfusion system. The relationship between blood flow changes and the thickness of retinal nerve fiber layer and ganglion cell layer can be rigorously evidence-based. It provides a good diagnosis and treatment prospect for assessing the damage of early glaucoma.