Group A (Superior incision)

Group B    (Temporal incision)

P value

Mean preoperative astigmatism (D) +SD

1.63+1.23

1.38+ 1.03

p>0.05

Mean postoperative astigmatism (D) +SD

-0.42+1.17

1.84+1.36

P<0.01*

Mean SIA astigmatism (D) +SD

-2.1+0.9

0.7+0.52

p<0.01*

a) Astigmatism magnitude (D)+ SD

        

Group A (Superior incision)

Group B    (Temporal incision)

Mean preoperative astigmatism (D) and axis

1.63 @ 93

1.38 @ 84

Mean postoperative astigmatism (D) and axis

-0.42 @ 11

1.84 @ 92

Mean SIA astigmatism (D) and axis

-2.1 @ 5

0.7@ 112

b) Astigmatism axis
*Statistically significant (P<0.01) [WTR astigmatism is given +ve sign and against the rule astigmatism (ATR) is given -ve sign].
Table 2: Mean pre, post, and surgically induced astigmatism magnitude and axis in both groups.