Table 4: Selected features using different classifiers in GAFS.

SVMNBNN

Cohen’s kappa0.8710.8520.902

Common featuresAge
Spherical equivalent
Nasal rim/disc area ratio
Horizontal disc angle
Average cup depth
cpRNFLT (superior in four sectors)

Individual featurescpRNFLT (temporal superior in six sectors)Disc horizontal diametercpRNFLT (temporal superior in six sectors)
Maximum height differenceCup area
Horizontal disc diameterMaximum cup depth