Table 1.

The mean UAVA &AVA and its P values.

Visual acuity	Preoperative Mean ± SD Min-max	3 months Mean ± SD Min-max	P1 value	6 months Mean ± SD Min-max	P2 value	12 months Mean ± SD Min-max	P3 value
Unaided	0.54 ± 0.2 (0.2–1.00)	0.46 ± 0.20AC (0.2–1.00)	0.029*	0.35 ± 0.23A (0–0.8)	<0.001*	0.34 ± 0.22C) 0–0.8)	<0.001*
Aided	0.36 ± 0.20	0.31 ± 0.17AC	0.06	0.19 ± 0.15A	<0.001*	0.17 ± 0.13C	<0.001*
	(0–0.8)	(0–0.6)		(0–0.6)		(0–0.5)

Paired samples t test. ABC: Similar letters indicate statistically significant differences (p < 0.05).

P1: difference between preoperative and after 3 month.

P2: difference between preoperative and 6 month.

P3: difference between preoperative and 12 months.

SD: Standard deviation; UAVA: unaided visual acuity; AVA: Aided visual acuity.