Comparison of Photopic Negative Response of Full-Field and Focal Electroretinograms in Detecting Glaucomatous Eyes

Table 1

Area under the curve of the PhNR amplitude and PhNR/b-wave amplitude ratio.

	PhNR amplitude		PhNR/b-wave amplitude ratio
	AUC	95% CI	AUC	95% CI
Early (𝑛=41)
Full-field ERG	0.748	0.638–0.839	0.666	0.551–0.768
Focal ERG
Center	0.866	0.759–0.925	0.863	0.767–0.930
Sup/temp	0.863	0.767–0.930	0.886	0.795–0.947
Inf/temp	0.874	0.780–0.938	0.924	0.841–0.971
Intermediate (𝑛=28)
Full-field ERG	0.865	0.758–0.937	0.789	0.670–0.880
Focal ERG
Center	0.906	0.808–0.964	0.938	0.849–0.982
Sup/temp	0.929	0.838–0.978	0.946	0.860–0.987
Inf/temp	0.959	0.878–0.992	0.942	0.854–0.984
Advanced (𝑛=34)
Full-field ERG	0.954	0.875–0.989	0.910	0.817–0.965
Focal ERG
Center	0.951	0.871–0.988	0.930	0.842–0.977
Sup/temp	0.968	0.895–0.995	0.953	0.874–0.989
Inf/temp	0.972	0.902–0.996	0.972	0.901–0.996

PhNR: photopic negative response; AUC: area under the curve; CI: confidence interval; sup/temp: superior/temporal; inf/temp: inferior/temporal.