Table 3.

Baseline and the postoperative values at 24 months of corrected distance visual acuity and visual field parameters (mean deviation and pattern standard deviation in decibels) in both groups

Variable	Group A		Group B		Student’s t-test	P-value
	Mean	± Standard deviation	Mean	± Standard deviation
Corrected distance visual acuity, baseline	0.569	0.293	0.585	0.313	0.129	0.898
Corrected distance visual acuity, 24 months	0.585	0.254	0.515	0.313	0.619	0.542
Mean deviation, baseline	15.15	3.58	13.38	2.53	1.46	0.159
Mean deviation, 24 months	16.23	4.27	15.69	3.82	0.339	0.737
Pattern standard deviation, baseline	5.31	2.06	4.85	1.77	0.613	0.546
Pattern standard deviation, 24 months	5.15	3.02	6.62	2.43	1.36	0.187