Glaucoma Specialist Optic Disc Margin, Rim Margin, and Rim Width Discordance in Glaucoma and Glaucoma Suspect Eyes

American Journal of Ophthalmology
Seung Woo HongClaude F Burgoyne

Abstract

To quantify the variability of 5 glaucoma specialists' optic disc margin (DM), rim margin (RM), and rim width (RW) estimates. Inter-observer reliability analysis. Clinicians viewed stereo-photographs from 214 subjects with glaucoma or ocular hypertension and digitally marked the DM and RM. For each photograph, the centroid of each clinician's DM was calculated, and an averaged DMcentroid was determined. The axis between the DMcentroid and the fovea was used to establish 12 30-degree sectors. Measurements from the DMcentroid to each clinician's DM (DMradius) and RM (RMradius) were used to generate a RW (DMradius-RMradius) and cup-to-disc ratio (CDR) (RMradius/DMradius) by sector. Parameter means, standard deviations, and coefficient of variations (COVs) were calculated across all clinicians for each eye. Parameter means for each clinician, and intraclass correlation coefficients (ICC), were calculated across all eyes by sector. Among all eyes, the median COV by sector ranged from 3% to 5% for DMradius, 20% to 25% for RMradius, and 26% to 30% for RW. Sectoral ICCs for CDR ranged from 0.566 to 0.668. Sectors suspicious for rim thinning by 1 clinician were frequently overlooked by others. Among 1724 sectors in which at least 1 clin...Continue Reading

Citations

Sep 8, 2018·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Brad Fortune
Sep 10, 2020·Investigative Ophthalmology & Visual Science·Eunoo BakSeok Hwan Kim
Jan 22, 2020·The British Journal of Ophthalmology·Edouard MaupinCatherine P Creuzot-Garcher
Sep 10, 2019·Investigative Ophthalmology & Visual Science·Min Hee SuhRupesh Agrawal
Jan 27, 2020·Progress in Retinal and Eye Research·Eun Jung LeeChangwon Kee
Mar 19, 2021·Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft·Christian Wolfram, Alexander K Schuster
Apr 25, 2021·Scientific Reports·Jasmin RezapourLinda M Zangwill
Dec 23, 2021·Ophthalmology·Steven J GeddeUNKNOWN American Academy of Ophthalmology Preferred Practice Pattern Glaucoma Panel

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