Table 2

Visual acuity (uncorrected and presenting)

VA (uncorrected)	6–7-year-olds		12–13-year-olds
VA (uncorrected)	Number	Mean logMAR (SD)	Number	Mean logMAR (SD)
Right
All	390	0.12 (0.12)^*	661	0.09 (0.30)^*
Boys	193	0.12 (0.12)^†	334	0.07 (0.27)^‡
Girls	197	0.12 (0.12)^†	327	0.12 (0.33)^‡

Left
All	390	0.12 (0.15)^*	661	0.09 (0.31)^*
Boys	193	0.12 (0.16)^†	334	0.06 (0.28)^‡
Girls	197	0.12 (0.15)^†	327	0.13 (0.34)^‡

Right
No refractive error	295	0.09 (0.09)	484	−0.02 (0.15)
Myopia≤−0.50DS	8	0.27 (0.24)^§	99	0.58 (0.40)^§
Hyperopia≥+2.00DS and <+3.00DS	49	0.13 (0.11)^¶	29	0.04 (0.13)^¶
Hyperopia≥+3.00DS	38	0.25 (0.19)^§	49	0.21 (0.26)^§

VA (presenting)
Right
No refractive error	295	0.09 (0.08)	484	−0.02 (0.14)
Myopia≤−0.50DS	8	0.27 (0.24)^§	99	0.16 (0.22)^§
Hyperopia≥+2.00DS and <+3.00DS	49	0.12 (0.6)^¶	29	0.02 (0.12)^¶
Hyperopia≥+3.00DS	38	0.20 (0.12)^§	49	0.10 (0.17)^§

↵* No statistically significant difference between the two age-groups.
↵† No statistically significant gender differences.
↵‡ Statistically significant gender differences.
↵§ Statistically significant difference in VA compared to children with no refractive error.
↵¶ No statistically significant difference in VA compared to children with no refractive error.