Table 4.

Comparisons of the diagnostic ability of asymmetry of OMAG parameters and structural thickness parameters for differentiating between the groups.

	P-value
	Control vs PPG	PPG vs PG	Control vs PG
Macular outer vessel length density asymmetry vs Average mGCIPL thickness asymmetry	0.982	0.077	0.202
Macular outer vessel length density asymmetry vs cpRNFL thickness asymmetry	0.546	0.118	0.266
Macular outer perfusion density asymmetry vs verage mGCIPL thickness asymmetry	0.685	0.039	0.369
Macular outer perfusion density asymmetry vs cpRNFL thickness asymmetry	0.415	0.060	0.384

The p value: comparisons of AUC of the vessel density asymmetry parameters and structural thickness asymmetry parameters.

AUC area under the receiver operation characteristic curve, adjusted for age, gender, and spherical equivalence.