Corneal Astigmatism Alteration after Combined Silicone Oil Removal and Cataract Surgery with Intraocular Lens Implantation

Table 2

Comparison of corneal astigmatism status in the baseline and postoperative visit.

Parameters	Time	Mean ± SD	MD	value	95% CI for difference
					Lower bound	Upper bound
K1	Pre-op	43.20 ± 1.44	—	—	—	—
	3 D-post-op	42.76 ± 1.71	0.442	0.016	0.070	0.813
	1 W-post-op	42.84 ± 1.60	0.360	0.009	0.078	0.641
	1 M-post-op	42.95 ± 1.52	0.250	0.035	0.015	0.484
K2	Pre-op	44.22 ± 1.39	—	—	—	—
	3 D-post-op	44.69 ± 1.75	−0.469	0.002	−0.772	−0.167
	1 W-post-op	44.60 ± 1.67	−0.380	<0.001	−0.610	−0.150
	1 M-post-op	44.54 ± 1.62	−0.316	0.001	−0.512	−0.119
Corneal astigmatism	Pre-op	−1.02 ± 0.57	—	—	—	—
	3 D-post-op	−1.93 ± 1.39	0.911	<0.001	0.465	1.358
	1 W-post-op	−1.76 ± 1.22	0.739	<0.001	0.361	1.118
	1 M-post-op	−1.58 ± 1.05	0.565	<0.001	0.247	0.883

D, day; W, week; M, month; post-op, postoperation; SD, standard deviation; MD, mean difference; CI, confidence interval. .