Demographics of the study subjects.

The data are expressed as the means ± SD.N: non-glaucomatous groupG: glaucomatous groupEG: early stage glaucoma group (MD AG: advanced stage glaucoma group (MD ≥-5dB)SE: spherical equivalentMD: mean deviationPSD: pattern standard deviation* Difference between the normal group and all glaucoma cases† Difference between the normal group and the early glaucoma group‡ Difference between the normal group and the progressive/advanced glaucoma groupDemographics of the study subjects.