Table 1.

Intergroup comparison of mean astigmatism: Preoperative and on postoperative day 1, day 7, and day 30

Surgery	n	Mean	SD	P
PREOP
SICS	155	−0.89	0.72	0.018
Phaco	155	−0.72	0.48
DAY1
SICS	150	−1.73	1.13	<0.001
Phaco	152	−1.04	0.74
DAY7
SICS	155	−1.72	1.04	<0.001
Phaco	155	−1.02	0.64
DAY30
SICS	155	−1.72	0.98	<0.001
Phaco	155	−1.00	0.60

*values of mean in diopters