OCT and HRT parameters of POAG and NTG groups.

OCT = Optical Coherence Tomography; HRT = Heidelberg Retina Tomograph; RNFL = retinal nerve fiber layer; POAG = primary open-angle glaucoma; NTG = normal-tension glaucoma; CDR = cup/disc ratio. Data are presented as mean (standard deviation). Comparisons between two groups were performed by Student’s t test. OCT and HRT parameters of POAG and NTG groups.