Clinical Study

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 normalGlaucoma versus normal
(glaucoma suspect removed)
Glaucoma and glaucoma suspect versus normal

DDLS obtained by 3D optic disc photography0.9310.9740.915
DDLS scored by the glaucoma specialist0.9410.9920.961
Vertical C/D ratio0.8420.8960.873
*Superior rim width0.8280.8520.751
*Inferior rim width0.7620.8000.725
Cup area0.7460.8680.856
Disc area0.4450.6680.738
*Rim area0.8050.7150.546
C/D area ratio0.8320.8970.850
*Rim disc area ratio0.8330.8980.851
Cup volume0.6910.8930.887
*Rim volume0.7580.5930.591
Rim area (OCT)0.8710.9140.819
Cup volume (OCT)0.6800.8790.876
Average RNFL (OCT) 0.8320.8740.780

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.