Alnawaiseh M, et al. - An inquiry was set up in patients with open-angle glaucoma, with regard to the association between flow density, as determined via optical coherence tomography angiography (OCTA), and structural and functional parameters. A reduced optic nerve head (ONH) and macular perfusion were illustrated among glaucoma patients compared to the healthy controls. The flow density exhibited a connection with structural damage and visual field loss in glaucoma patients. Using OCTA, non-invasive quantitative analyses of flow density offered a new parameter that elucidated a varied aspect of glaucoma. This could be beneficial in clinical practice.