Purpose: To define the features of glaucoma progression, considering the analysis of treatment approaches (regimens) in patients with primary open-angle glaucoma.Methods: The multicenter clinical cohort study was performed during Nov 2015 - Jan 2018 in 30 clinical bases of 6 countries. Data of 155 primary open-angle glaucoma patients (247 eyes) was included. Anamnesis, intraocular pressure (IOP) by the moment of the first treatment regimen as well as the administered treatment were analyzed retrospectively. IOP (baseline and 5 more measurements each 6 months) was analyzed prospectively. During the automated perimetry analysis, mean deviation of light sensitivity (MD) and its pattern standard deviation (PSD) were analyzed. IOP, MD, PSD data ...