Glaucoma is a chronic disease of the optic nerve, characterized by progressive loss of nerve cells in the retina, leading to progressive loss of peripheral and central vision. There are in fact several types of glaucoma, which is the world's second leading cause of blindness after cataracts, and the leading cause of irreversible blindness. To date, to our knowledge, there is no work analyzing the progression of angiographic OCT in patients with glaucoma. The main aim of this study is to compare the 3-year progression rate of 3 examinations in advanced glaucoma patients: one functional (visual field) and two anatomical (OCTa and OCTrnfl).