Table 4.

Keratocyte density in the central and peripheral transparent cornea

Parameters	Anterior stroma (cells/mm2)	Posterior stroma (cells/mm2)
Total
Central	990 ± 233	554 ± 132
Peripheral	886 ± 187	546 ± 136
t value	3.37	0.435
P value	0.001*	0.665
Group A
Central	1,019 ± 262	552 ± 130
Peripheral	967 ± 152	576 ± 152
t value	0.813	0.764
P value	0.427	0.455
Group B
Central	1,025 ± 186	559 ± 132
Peripheral	898 ± 214	549 ± 118
t value	2.161	0.333
P value	0.043*	0.743
Group C
Central	1,026 ± 216	570 ± 135
Peripheral	851 ± 173	544 ± 119
t value	3.612	0.632
P value	0.002*	0.535
Group D
Central	867 ± 252	532 ± 142
Peripheral	819 ± 183	512 ± 157
t value	0.604	0.491
P value	0.555	0.630

Differences between the central and peripheral cornea were analyzed using the paired Student’s t-test (*P < 0.05 was considered as statistically significant)