Correlation between Optic Nerve Parameters Obtained Using 3D Nonmydriatic Retinal Camera and Optical Coherence Tomography: Interobserver Agreement on the Disc Damage Likelihood Scale
Table 4
Calculation of the area under the curve for each parameter according to group constellation.
Test result variable(s)
Glaucoma versus glaucoma suspect and normal
Glaucoma versus normal (glaucoma suspect removed)
Glaucoma and glaucoma suspect versus normal
DDLS obtained by 3D optic disc photography
0.931
0.974
0.915
DDLS scored by the glaucoma specialist
0.941
0.992
0.961
Vertical C/D ratio
0.842
0.896
0.873
*Superior rim width
0.828
0.852
0.751
*Inferior rim width
0.762
0.800
0.725
Cup area
0.746
0.868
0.856
Disc area
0.445
0.668
0.738
*Rim area
0.805
0.715
0.546
C/D area ratio
0.832
0.897
0.850
*Rim disc area ratio
0.833
0.898
0.851
Cup volume
0.691
0.893
0.887
*Rim volume
0.758
0.593
0.591
Rim area (OCT)
0.871
0.914
0.819
Cup volume (OCT)
0.680
0.879
0.876
Average RNFL (OCT)
0.832
0.874
0.780
DDLS: disc damage likelihood scale. C/D: cup/disc. OCT: optical coherence tomography.
*Parameters were negatively correlated with DDLS; thus, the area under the curve was obtained from 1 minus the original value.