Rong X, et al. - Among 51 patients and 60 age-matched controls, researchers examined the features of retinal arteries to incorporate useful tools to assist with the diagnosis of normal pressure glaucoma (NTG). Patients with newly diagnosed NTG with hemifield defects and age-matched controls were included in this hospital-based, cross-sectional case control study. According to findings, peripapillary retinal arteriolar calibers (PRACs) in four quadrants were significantly decreased in people with first diagnosed NTG (82 ± 15.1 μm, 80 ± 13.6 μm, 71 ± 11.6 μm, and 64 ± 10.0 μm) vs those in age-matched controls (101 ± 9.8 μm, 105 ± 8.7 μm, 90 ± 7.5 μm, and 82 ± 9.8 μm). In the RNFL unaffected hemifield, temporal PRACs were significantly narrower than in healthy eyes. Superotemporal PRAC exhibited a significant association with superior RNFLT, and a comparable link was found between inferotemporal PRAC and inferior RNFLT. For distinguishing patients with NTG, PRAC and inferotemporal PRAC were valid parameters.