Table 2.
The mean values and range of age, sex, sphere, cylinder, spherical equivalent (SE), preoperative central corneal thickness (CCT) as well as K1 and K2 values in both groups
| Group I | Group II | P value | |
|---|---|---|---|
| Age (years) | |||
| Mean ± SD Range |
26.28 ± 3.41 21–33 |
26.88 ± 3.99 22–35 |
0.285 |
| Gender | |||
| Male Female |
12 13 |
11 14 |
0.23 |
| Sphere (diopters) | |||
| Mean ± SD Range |
−4.90 ± 1.26 −3 to −7.75 |
−4.59 ± 1.40 −3 to −7.5 |
0.208 |
| Cylinder (diopters) | |||
| Mean ± SD Range |
−1.05 ± 0.52 0 to −1.75 |
−1.14 ± 0.35 −0.5 to −1.75 |
0.236 |
| SE (diopters) | |||
| Mean ± SD Range |
−5.43 ± 1.17 −3.625 to −8.5 |
−5.16 ± 1.42 −3.5 to −7.75 |
0.238 |
| Preop. CCT (microns) | |||
| Mean ± SD Range |
532.84 ± 16.37 512–572 |
527.96 ± 16.21 510–563 |
0.147 |
| K1 (diopters) | |||
| Mean ± SD Range |
44.84 ± 1.04 43–47 |
44.31 ± 1.39 42.1–47 |
0.066 |
| K2 (diopters) | |||
| Mean ± SD Range |
43.59 ± 1.09 41.8–45.6 |
42.98 ± 1.48 40–45.7 |
0.061 |
| Post op SE | |||
| Mean ± SD Range |
−0.51 ± 1.02 +0.75 to −1.25 |
−0.6 ± 0.9 +0.4 to −1.5 |
0.149 |
| Post OP. CCT | |||
| Mean ± SD Range |
486.81 ± 18.32 468–514 |
479.46 ± 15.71 461–520 |
0.138 |