(+0.50 - +1.75) (+2.00 - +3.00) (+3.25 - +5.00)
Pre Post   Pre Post   Pre Post  
Mean ± SD Mean ± SD P-value Mean ± SD Mean ± SD P-value Mean ± SD Mean ± SD P-value
Sphere +0.86 ± 0.29 0.50 ± 0.57 0.025 +2.18 ± 0.29 0.36 ± 0.42 <0.01 +3.95 ± 0.65 0.52 ± 0.98 <0.01
cylinder -2.30 ± 0.72 -0.49 ± 0.37 <0.01 -0.93 ± 1.15 -0.30 ± 0.38 0.023 -0.81 ± 0.94 -0.45 ± 0.39 0.19
SE -0.29 ± 0.59 0.25 ± 0.49 0.008 +1.71 ± 0.45 0.19 ± 0.33 <0.01 +3.53 ± 0.72 0.30 ± 0.64 <0.01
Pre=Preoperative Post=Postoperative SE=Spherical Equivalent
Table 1: Preoperative and postoperative mean and standard deviation of sphere, cylinder and spherical equivalent in different groups of hyperopia.