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 |