Hollo G - The author aimed to investigate the applicability of peripapillary optical coherence tomography angiography angioflow vessel density measurements in the retinal nerve fiber layer for the detection of glaucomatous progression and to draw a comparison between its performance and retinal nerve fiber layer thickness (RNFLT) measurements. Data suggested the detection of glaucomatous progression was not supported by peripapillary vessel density measurement. In the glaucoma group, the relative residual SD of RNFLT measurements was noted to be higher than in the combined normal and OHT group, whereas the relative residual SD of vessel density measurements did not differ between the groups.