Glaucoma is the leading cause of irreversible blindness worldwide. Its specific pathophysiology is still not clear. Currently hemodynamic alterations are regarded as one of the key factors in the pathophysiology of glaucoma. Optical coherence tomography angiography(OCTA)is a new imaging technique that enables visualization of the retinal and choroidal microvasculature, and with novel algorithms generates high resolution images and quantifies vessel density and blood flow of the retina and choroid. We reviewed the recent advances in the diagnosis and treatment of glaucoma measured using OCTA,which provides a reference for diagnosis of glaucoma and evaluation of glaucoma severity.