Table 2.

Axial diameter and transverse diameter of the eyeballs in experimental and control group (mm, $\overline{x}\pm s$).

Groups	Axial diameter (avg.)	Transverse diameter (avg.)	P
Exp.	19.32 ± 0.43	19.19 ± 0.47	0.31
Ctrl.	18.07 ± 0.19	18.08 ± 0.34	0.79
P	0.001∗∗	0.002∗∗

Axial and transverse diameter of the eyeballs in each group was measured for 3 times repeatedly. The axial and transverse diameters of the eyeballs were longer in the experimental group than those in the control group, with significant difference (P < 0.01).