Evaluation of the efficacy, safety, and stability of posterior chamber phakic intraocular lenses for correcting intractable myopic anisometropic amblyopia in a pediatric cohort

Table 1 Statistical comparisons between the mean values, standard deviations, and ranges of the patients’ visual acuity and refraction on each of the preoperative visit, the first postoperative visit, and the last follow-up visit

		Preoperative visit	1st postoperative visit	Last postoperative visit	Test value	P-value of significance	Significance level
UDVA^b	Mean ± SD^b	1.33 ± 0.53	0.57 ± 0.36	0.42 ± 0.34	30.481825^a	< 0.001	HS^b
UDVA^b	Range	0.04–2	0–1.52	0–1.3	30.481825^a	< 0.001	HS^b
CDVA^b	Mean ± SD	1.06 ± 0.56	0.42 ± 0.35	0.21 ± 0.18	14.880825^a	0.001	HS^b
	Range	0.18–2	0.04–1.52	0–0.7
	Range	−17.5 – −6	−6.25 – 2.5	− 1.75 – 4.75
	Range	−4.5 – 0	−50 – 1.5	−4.5 – 1.5
SE^b	Mean ± SD	−12.85 ± 2.74	− 1.02 ± 3.97	−0.55 ± 1.45	48.825^a	< 0.001	HS^b
SE^b	Range	− 19 – −7.13	−24 – 1.63	− 2.63 – 4.13	48.825^a	< 0.001	HS^b
Post hoc analysis
		Preoperative Versus 1st postoperative visit	Preoperative Versus Last postoperative visit		1st postoperative Versus Last postoperative visit
UDVA^b		< 0.001	< 0.001		0.012
CDVA^b		< 0.001	0.001		0.125
SE^b		< 0.001	< 0.001		0.588

P-value > 0.05: Non significant; P-value < 0.05: Significant; P-value < 0.01: Highly significant
^aFriedman test followed by post hoc analysis using Wilcoxon Rank test
^bUDVA Unaided Distance Visual Acuity, SD Standard Deviation, CDVA Corrected Distance Visual Acuity, SE Spherical Equivalent, HS Highly significant

ISSN: 1471-2415