Table 3: Keratometric indices between group 1 and 2.

Mean ± SD Sim Ka (D) SE (in minus) (D)
- 1 2 P (1-2) 1 2 P (1-2)
Pre-operative 7.0 ± 2.0 6.73 ± 1.98 0.3 6.75 ± 1.82 5.98 ± 2.01 0.3
3 months 6.71 ± 1.78 6.41 ± 1.90 0.3 6.45 ± 1.71 5.65 ± 1.8 0.3
6 months 6.36 ± 1.85 5.99 ± 1.87 0.5 6.27 ± 1.70 5.15 ± 1.78 0.5
12 months 5.97 ± 1.88 5.53 ± 0.08 0.7 5.85 ± 1.65 4.88 ± 1.70 0.75
P (preoperative-12 months) < 0.001 < 0.001 < 0.001 < 0.001 -

*SE=Spherical Equivalent, Sim Ka=Simulated keratometric astigmatism