Table 2.

Nonparametric Wilcoxon signed-rank test for the preoperative and 3-month postoperative change of dry eye outcome variables.

	Preoperative	Post-op 1-month	Post-op 3-month	Significance
Tear film breakup time	5.10 ± 1.27	7.63 ± 1.19	7.80 ± 1.13	<0.001
Schirmer test	6.07 ± 2.27	6.80 ± 2.25	7.27 ± 2.02	<0.001
Dry eye symptom score	2.80 ± 0.76		0.30 ± 0.47	<0.001