Retinal Nerve Fiber Layer-to-Disc Ratio Distinguishing Glaucoma from Nonarteritic Anterior Ischemic Optic Neuropathy
10.3341/jkos.2022.63.2.191
- Author:
Donghee PARK
1
;
Youn Joo CHOI
;
Sung Pyo PARK
;
Kyeong Ik NA
Author Information
1. Department of Ophthalmology, Hallym University Kangdong Sacred Heart Hospital, Seoul, Korea
- Publication Type:Original Article
- From:Journal of the Korean Ophthalmological Society
2022;63(2):191-201
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Purpose:To evaluate the diagnostic value of retinal nerve fiber layer-to-disc ratio (RDR) compared to established parameters including retinal nerve fiber layer thickness (RNFLT), Bruch membrane opening-minimum rim width (BMO-MRW), and Bruch membrane opening-minimum rim area (BMO-MRA) for differentiating between open angle glaucoma (OAG) and nonarteritic anterior ischemic optic neuropathy (NAION).
Methods:This retrospective study included 23 optic disc size-matched normal control eyes and 23 OAG and NAION eyes matched according to global RNFLT. The RDR, RNFLT, BMO-MRW, and BMO-MRA were analyzed; the diagnostic capabilities of these parameters were compared using the area under the receiver operating characteristic curve (AUC).
Results:The global BMO-MRW and total BMO-MRA were lower in the OAG group than in the other two groups (all p < 0.001). RDR was greatest in the OAG group, followed by the healthy and NAION groups (p < 0.001). Between the OAG and NAION groups, the AUCs for temporal inferior BMO-MRW, total BMO-MRA, and RDR were 0.987, 0.996, and 1.000, respectively; these were greater than the temporal inferior RNFLT (0.811; p = 0.005, p = 0.006, and p = 0.006, respectively).
Conclusions:RDR could be one of the useful parameters for differential diagnosis in OAG and NAION.
