Authors describe the fluoroangiography of the optic pupil in 15 patients who were suffering from chronic open-angle glaucoma and found a lessening of the fluorescence of the optic disk. It can be attributed to a hypoperfusion of the optic nerve. The results obtained and that is an constant ipofluorescein, even with different levels in relation to the type of glaucoma damage noticed, they look to support this etiopathogenetic hypothesis.