Table 3.

Comparison of best corrected visual acuity between two groups at different time points before and after surgery

time	BCVA(logMAR, mean ± SD)
	total	Phaco-GATT	GATT-Phaco	t	p
baseline	0.75 ± 0.36	0.78 ± 0.40	0.71 ± 0.33	0.248	0.805
1 day	1.15 ± 0.87	1.37 ± 0.89	0.93 ± 0.80	2.332	0.022
1 week	0.41 ± 0.26	0.47 ± 0.34	0.35 ± 0.14	2.041	0.045
1 month	0.29 ± 0.21	0.33 ± 0.26	0.26 ± 0.15	1.502	0.137
3 months	0.26 ± 0.16	0.28 ± 0.19	0.24 ± 0.12	1.403	0.164
6 months	0.30 ± 0.15	0.32 ± 0.16	0.28 ± 0.12	1.041	0.301
12 months	0.30 ± 0.14	0.32 ± 0.17	0.27 ± 0.11	1.518	0.133
F	75.34	49.88	27.09
p	<0.001	<0.001	<0.001

BCVA = best corrected visual acuity; Phaco = phacoemulsification; GATT = gonioscopy‑assisted transluminal trabeculotomy; SD = standard deviation. The P-values in the rightmost column represent the statistical comparisons of the Phaco-GATT and GATT-Phaco groups at each time point. The P-value in the last row represents the within-group comparison baseline with 12 months