Table 4.

Mean±SD (or median (range)) age and ocular parameters of the subjects at the commencement of the study

	Control (n=30)	CCF (n=34)	ICF (n=35)	*P value
Age (years)	9.01±0.99	9.03±1.03	9.42±1.06	0.19
Pre-cyclo S (D)	−2.07±0.80	−2.19±0.77	−2.16±0.84	0.97
Pre-cyclo C (D)	−0.25 (0.00 to −1.50)	−0.25 (0.00 to −1.25)	−0.25 (0.00 to −1.50)	0.61†
Pre-cyclo SCxA	−2.16–0.25×177	−2.21–0.34×001	−2.20–0.31×002
Post-cyclo S (D)	−2.00±0.82	−2.17±0.81	−2.12±0.86	0.95
Post-cyclo C (D)	−0.50 (0.00 to −1.50)	−0.50 (0.00 to −1.50)	−0.25 (0.00 to −1.50)	0.67†
Post-cylco SCxA	−2.10–0.32×180	−2.12–0.38×001	−2.09–0.33×179
Unaided logMAR VA	0.65±0.25	0.64±0.27	0.67±0.30	0.90
Best-corrected logMAR VA	−0.02±0.06	−0.02±0.06	−0.02±0.06	0.95
CCT (μm)	547±35	545±30	552±28	0.64
Axial length (mm)	24.39±0.81	24.36±0.66	24.51±0.83	0.47

Values are presented as mean±SD or median (range).

*Probability values of one-way analysis of variance (ANOVA) for between-group difference.

†Probability value of Kruskal-Wallis test for between-group difference.

CCF, conventional compression factor; CCT, central corneal thickness; ICF, increased compression factor; Post-cyclo C, post-cycloplegic subjective astigmatism; Pre-cyclo C, pre-cycloplegic subjective astigmatism; Post-cyclo S, post-cycloplegic subjective sphere; Pre-cyclo S, pre-cycloplegic subjective sphere; SCxA, compound refractive number after Long’s formalism; VA, visual acuity.