Effect of capsule treatment on visual acuity and quality after phacoemulsification lens implantation in myopic patients with cataract

Table 2 Comparison of visual acuity between the two groups before and after operation

Index	Observation group (70 eyes)	Control group (64 eyes)	t	P value
Far vision
Preoperative	0.21 ± 0.04	0.20 ± 0.05	1.283	0.202
6 months after operation	0.08 ± 0.02a	0.15 ± 0.04a	-12.977	0.000
Medium vision
Preoperative	0.45 ± 0.15	0.47 ± 0.15	-0.771	0.442
6 months after operation	0.24 ± 0.10a	0.36 ± 0.11a	-6.615	0.000
Near vision
Preoperative	0.30 ± 0.07	0.31 ± 0.06	-0.884	0.378
6 months after operation	0.09 ± 0.02a	0.23 ± 0.05a	-21.617	0.000

^aP < 0.05 when compared with preoperative.