Table 2

Visual acuity (uncorrected and presenting)

VA (uncorrected)6–7-year-olds12–13-year-olds
NumberMean logMAR (SD)NumberMean logMAR (SD)
Right
 All3900.12 (0.12)*6610.09 (0.30)*
 Boys1930.12 (0.12)3340.07 (0.27)
 Girls1970.12 (0.12)3270.12 (0.33)
Left
 All3900.12 (0.15)*6610.09 (0.31)*
 Boys1930.12 (0.16)3340.06 (0.28)
 Girls1970.12 (0.15)3270.13 (0.34)
Right
 No refractive error2950.09 (0.09)484−0.02 (0.15)
 Myopia≤−0.50DS80.27 (0.24)§990.58 (0.40)§
 Hyperopia≥+2.00DS and <+3.00DS490.13 (0.11)290.04 (0.13)
 Hyperopia≥+3.00DS380.25 (0.19)§490.21 (0.26)§
VA (presenting)
 Right
 No refractive error2950.09 (0.08)484−0.02 (0.14)
 Myopia≤−0.50DS80.27 (0.24)§990.16 (0.22)§
 Hyperopia≥+2.00DS and <+3.00DS490.12 (0.6)290.02 (0.12)
 Hyperopia≥+3.00DS380.20 (0.12)§490.10 (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.