Table 2.

Diagnostic performance of Ic-VEP in detecting POAG compared to controls

Group	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)
All POAG (n = 66)	74.2	91.4	94.2	65.3
Early POAG (n = 30)	70.0	91.4	87.5	78.0
Moderate to Severe POAG (n = 36)	86.1	91.4	91.2	86.5

Ic-VEP diagnostic performance for POAG vs. controls (n = 35), showing sensitivity, specificity, PPV (Positive Predictive Value), and NPV (Negative Predictive Value) for all POAG (n = 66), early POAG (n = 30), and moderate to severe POAG (n = 36). AUC for all POAG: 0.785 (95% CI: 0.606–0.965, p < 0.05; Fig. 1)