Optical Coherence Tomography Angiography Characteristics and Predictors of Visual Outcomes in Patients with Acute and Chronic Nonarteritic Anterior Ischemic Optic Neuropathy

xloma.fota13 shared this article with you from Inoreader Optical Coherence Tomography Angiography Characteristics and Predictors of Visual Outcomes in Patients with Acute and Chronic Nonarteritic Anterior Ischemic Optic Neuropathy Via Journal of Neuro-Ophthalmology - Published Ahead-of-Print Background/Aims: To investigate the correlation between optical coherence tomography angiography (OCTA) characteristics and visual outcomes in patients with acute and chronic nonarteritic anterior ischemic optic neuropathy (NAION). Methods: We retrospectively reviewed clinical data and OCTA images of 26 eyes of 26 patients who had been diagnosed with unilateral NAION. OCTA images were acquired from 17 eyes at the acute stage and from 21 eyes at the chronic stage of NAION. We analyzed the peripapillary vessel density (VD) and macular VD in various layers of the retina and choroid for all images. Possible correlations between the OCTA parameters and visual outcomes were investigated. Results: Among the OCTA parameters for the acute stage of NAION, the temporal peripapillary VD was found to be positively correlated with final visual acuity and visual field with statistical significance (P = 0.039 and 0.009, respectively). In the chronic stage of NAION, both peripapillary and superficial macular VDs were positively correlated with visual outcomes. The nasal perifoveal VD in the superficial capillary plexus (SCP) also had a significant correlation with final visual acuity for both acute and chronic stages (the Spearman correlation coefficient = 0.565 and 0.685, respectively). Conclusions: In patients with NAION, significant correlations were found between OCTA parameters and visual outcomes. The temporal peripapillary VD measured during the acute stage was a significant predictor of final visual outcomes. The decreased nasal perifoveal VD in the SCP was strongly associated with poor visual prognosis. Address correspondence to Hyun Taek Lim, MD, PhD, Department of Ophthalmology, Asan Medical Center, University of Ulsan College of Medicine, 388-1 Pungnap-2-dong, Songpa-gu, Seoul, Korea 05505; E-mail: htlim@amc.seoul.kr The authors report no conflicts of interest. © 2020 by North American Neuro-Ophthalmology Society View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.