RNFL thickness (µm)

Eyes with preperimetric glaucoma (mean ± SD)

Healthy eyes (mean ± SD)

P values

RNFL1 Ave

101.03 ± 11.67

110.57 ± 7.88

<0.001

RNFL1 Sup

101.92 ± 12.86

111.48 ± 9.78

<0.001

RNFL1 Inf

100.24 ± 12.70

109.45 ± 9.68

<0.001