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. 2017 Oct 19;12(10):e0186741. doi: 10.1371/journal.pone.0186741

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© 2017 Yoo et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Fig 1 — Comparison of pupillary constriction ratio (A), constriction latency (B), average constriction velocity (C), and average dilation velocity (D) between patients with optic neuritis (ON) and nonarteritic ischemic optic neuropathy (NAION). (A, C, D) Pupillary constriction ratio, average constriction velocity, and average dilation velocity revealed no significant difference between the ON group and NAION group. (P values = 0.069, 0.585 and 0.869, respectively). (B) However, constriction latency was significantly delayed in patients with ON compared to NAION (P = 0.047).