Table 2.

Superficial epithelial cell density and area in the central and peripheral transparent cornea

	Density (cells/mm2)	Area (μm2)
Total
Central	1392 ± 337	766 ± 197
Peripheral	1323 ± 377	808 ± 227
t value	1.191	1.165
P value	0.238	0.248
Group A
Central	1303 ± 268	794 ± 140
Peripheral	1445 ± 498	780 ± 310
t value	1.278	0.174
P value	0.219	0.864
Group B
Central	1443 ± 432	748 ± 218
Peripheral	1296 ± 346	824 ± 212
t value	1.164	1.112
P value	0.261	0.282
Group C
Central	1414 ± 255	730 ± 137
Peripheral	1223 ± 268	859 ± 204
t value	2.022	1.002
P value	0.06	0.06
Group D
Central	1406 ± 369	752 ± 168
Peripheral	1371 ± 355	768 ± 164
t value	0.27	0.289
P value	0.791	0.777

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