Analysis of Changes in Corneal Topography after 27-Gauge Transconjunctival Microincision Vitrectomy Combined with Cataract Surgery

Table 1

Means (SDs) of all components by corneal shape Fourier analysis in all patients.

	Preoperatively	1 day postoperatively	1 week postoperatively	1 month postoperatively	1 month postoperatively
Spherical power (, ANOVA)	43.63 ± 1.74 D	43.27 ± 1.89 D	43.46 ± 1.70 D	43.52 ± 1.60 D	43.56 ± 1.62 D
Regular astigmatism (, Kruskal–Wallis test)	0.47 ± 0.43 D	0.51 ± 0.33 D	0.43 ± 0.27 D	0.44 ± 0.30 D	0.38 ± 0.31 D
Asymmetry (, Kruskal–Wallis test)	0.43 ± 0.32 D	0.67 ± 037 D ()	0.61 ± 0.59 D ()	0.41 ± 0.32 D ()	0.36 ± 0.23 D ()
Higher-order irregular astigmatism (, Kruskal–Wallis test)	0.18 ± 0.29 D	0.20 ± 0.14 D ()	0.20 ± 0.18 D ()	0.19 ± 0.18 D ()	0.14 ± 0.06 D ()

D: diopter; postoperative compared with before surgery (Wilcoxon signed-rank test. ).