Table 2.

Pearson Correlation Coefficients (n = 14) Between Different Regions for Through-Thickness, In-Plane, and Shear Strains at 30 mm Hg

Pearson Correlation R (at 30 mm Hg)	Through- Thickness Strain	In-Plane Strain	Shear Strain
ONH versus PPT	0.74*	0.43	0.64*
Anterior versus posterior ONH	0.03	0.53	0.29
Anterior versus posterior PPT	0.59*	0.48	0.92*
Central versus peripheral ONH	0.90*	0.75*	0.64*
Near versus far PPT	0.81*	0.57*	0.95*

^*Significant correlation at 0.05 significance level. It is noted that the current sample size provides 80% power to detect correlations larger than 0.61, based on one-sided test.