Ocular biometry by age and gender
| Age (years) | Axial length (mm) | Corneal curvature (mm) | AL/CR ratio | Spherical equivalent (D) | ||||
| Males | Females | Males | Females | Males | Females | Males | Females | |
| 4 | 22.50±0.71 | 21.88±0.66 | 7.88±0.27 | 7.73±0.26 | 2.85±0.07 | 2.83±0.07 | 1.14±0.88 | 1.46±0.87 |
| 5 | 22.77±0.70 | 22.19±0.63 | 7.90±0.25 | 7.78±0.25 | 2.88±0.07 | 2.85±0.06 | 1.11±0.85 | 1.38±0.76 |
| 6 | 22.95±0.66 | 22.36±0.64 | 7.89±0.24 | 7.76±0.23 | 2.91±0.07 | 2.88±0.07 | 1.16±0.89 | 1.29±0.91 |
| 7 | 23.22±0.75 | 22.66±0.68 | 7.90±0.25 | 7.78±0.24 | 2.94±0.08 | 2.91±0.08 | 0.79±1.09 | 0.93±1.05 |
| 8 | 23.43±0.76 | 22.93±0.79 | 7.90±0.25 | 7.80±0.24 | 2.96±0.09 | 2.94±0.09 | 0.53±1.29 | 0.53±1.39 |
| 9 | 23.83±0.91 | 23.34±0.86 | 7.90±0.26 | 7.80±0.24 | 3.01±0.11 | 2.99±0.11 | −0.18±1.67 | −0.28±1.57 |
| 10 | 24.06±1.08 | 23.61±1.00 | 7.88±0.23 | 7.77±0.25 | 3.05±0.12 | 3.04±0.12 | −0.62±1.82 | −0.82±1.95 |
| 11 | 24.35±1.01 | 23.77±1.00 | 7.90±0.23 | 7.79±0.24 | 3.08±0.13 | 3.05±0.12 | −1.16±1.93 | −1.26±2.06 |
| 12 | 24.38±1.08 | 24.06±1.10 | 7.91±0.24 | 7.81±0.24 | 3.08±0.14 | 3.08±0.14 | −1.15±2.23 | −1.58±2.31 |
| 13 | 24.73±1.14 | 24.34±1.07 | 7.89±0.25 | 7.75±0.21 | 3.14±0.14 | 3.14±0.14 | −1.98±2.34 | −2.55±2.32 |
| 14 | 25.00±1.16 | 24.23±1.16 | 7.93±0.23 | 7.78±0.23 | 3.15±0.16 | 3.12±0.14 | −2.31±2.49 | −2.23±2.36 |
| 15 | 25.25±1.23 | 24.72±1.19 | 7.91±0.22 | 7.81±0.25 | 3.19±0.16 | 3.17±0.14 | −2.88±2.58 | −3.12±2.49 |
| 17 | 25.41±1.34 | 24.86±1.19 | 7.92±0.24 | 7.82±0.27 | 3.21±0.16 | 3.18±0.15 | −3.70±2.56 | −3.69±2.55 |
| 18 | 25.23±1.34 | 24.99±1.28 | 7.92±0.28 | 7.83±0.27 | 3.19±0.17 | 3.19±0.15 | −3.39±2.58 | −3.75±2.67 |
| All ages | 23.97±1.37 | 23.47±1.38 | 7.90±0.25 | 7.78±0.24 | 3.03±0.17 | 3.02±0.17 | −0.72±2.48 | −0.80±2.60 |
AL, axial length; CR, corneal radius.