Box-and-whisker plot of the mean AT1 (A), AV1 (B), AT2 (C), AV2 (D) and DA (E) in the normal, glaucoma without PGA treatment and glaucoma with long-term PGA treatment groups.

<p>Black squares and thin error bars represent means and maximum/minimum values, respectively. General linear model analysis was performed to investigate the corneal biomechanical property changes among the 3 subgroups. Furthermore, pairwise comparisons using Bonferroni correction for least squares means were employed.</p>