Prospective Cohort Study on Refractive Changes after Trabeculectomy

Table 2

Time course of refractive changes after trabeculectomy.

(Diopters)	All (n = 97)	Phakic (n = 61)	Pseudophakic (n = 36)
Preoperative	−1.93 ± 3.78	−2.31 ± 4.49	−1.28 ± 1.95
1 month	−2.22 ± 3.72	−2.63 ± 4.41	−1.15 ± 1.91
3 months	−2.22 ± 3.89	−2.77 ± 4.56	−1.28 ± 2.03
6 months	−2.28 ± 3.82	−2.83 ± 4.50	−1.36 ± 2.01
12 months	−2.73 ± 3.90	−3.62 ± 4.51	−1.22 ± 1.78
value
All	0.70^a	0.59^a	0.97^a
Pre vs. 1 month	0.016^b	0.08^b	0.33^b
Pre vs. 3 months	0.02^b	0.008^b	>0.99^b
Pre vs. 6 months	0.016^b	0.012^b	>0.99^b
Pre vs. 12 months	<0.001^b	<0.001^b	>0.99^b

Data expressed as mean ± standard deviation. values: ^aone-way repeated measures ANOVA; ^bpaired t test with Bonferroni correction.