Analysis | 3 year olds (n = 84) | 4 year olds (n = 45) | ||
---|---|---|---|---|

Right eye | Left eye | Right eye | Left eye | |

As the data were not normally distributed the median value and percentile limits (2.5th to 97.5th percentile) are also presented. | ||||

Mean acuity (SD) | 0.200 (0.09) | 0.200 (0.08) | 0.140 (0.08) | 0.144 (0.07) |

Median acuity | 0.180 | 0.200 | 0.100 | 0.125 |

95% confidence limits | 0.020 to 0.380 | 0.040 to 0.360 | −0.02 to 0.300 | 0.004 to 0.284 |

Percentiles limits | 0.075 to 0.400 | 0.078 to 0.400 | 0.008 to 0.325 | 0.000 to 0.300 |

Mean IAD (SD) | 0.03 (0.06) | 0.03 (0.04) | ||

Median IAD | 0.00 | 0.025 | ||

95% confidence limits IAD | −0.09 to 0.150 | −0.05 to 0.110 | ||

Percentiles limits IAD | 0.00 to 0.262 | 0.000 to 0.167 |