Table 1.
Average ± standard deviation retinal nerve fiber layer thickness measurements (μm) for mean overall, 4 quadrants and 12 clock hours in different age groups.
| Age (years) | 18-29 | 30-39 | 40-49 | 50-59 | 60-85 |
|---|---|---|---|---|---|
| Number of Eyes | 41 | 30 | 56 | 57 | 42 |
| Overall | 107.4±8.8 | 103.7±9.3 | 102.4±9.0 | 98.3±10.6 | 93.4±9.2 |
| Superior | 132.7±17.2 | 129.8±13.0 | 127.1±14.6 | 123.9±16.2 | 114.0±14.8 |
| Inferior | 136.4±15.4 | 129.4±15.2 | 127.5±15.2 | 123.3±17.8 | 117.6±15.0 |
| Temporal | 74.3±11.2 | 77.6±19.2 | 69.6±9.8 | 64.7±11.6 | 71.3±13.4 |
| Nasal | 86.1±14.4 | 77.9±13.1 | 85.2±15.1 | 81.4±16.3 | 70.7±15.6 |
| 1 o'clock | 126.2±23.8 | 119.2±19.1 | 112.9±20.4 | 114.9±21.0 | 100.8±17.8 |
| 2 o'clock | 103.2±20.3 | 93.4±17.9 | 102.8±17.6 | 97.2±20.6 | 82.1±20.0 |
| 3 o'clock | 70.6±14.1 | 64.4±11.2 | 70.6±14.2 | 66.8±17.8 | 58.3±15.1 |
| 4 o'clock | 84.6±16.9 | 75.8±16.5 | 82.3±19.5 | 80.2±17.8 | 71.9±16.9 |
| 5 o'clock | 117.3±26.1 | 110.9±20.4 | 111.9±22.9 | 108.1±26.4 | 98.2±19.3 |
| 6 o'clock | 147.2±21.4 | 136.2±25.5 | 137.1±21.6 | 137.5±29.5 | 125.5±20.7 |
| 7 o'clock | 144.8±21.5 | 141.3±24.2 | 133.6±17.1 | 124.3±15.2 | 129.3±24.5 |
| 8 o'clock | 76.5±14.6 | 81.8±23.2 | 70.8±12.1 | 66.2±13.1 | 70.9±15.5 |
| 9 o'clock | 58.0±8.5 | 60.0±15.1 | 54.1±7.9 | 50.2±9.3 | 55.9±10.3 |
| 10 o'clock | 88.6±15.6 | 91.0±23.3 | 83.9±14.5 | 78.0±16.6 | 87.3±19.5 |
| 11 o'clock | 138.7±21.7 | 138.4±24.3 | 139.8±20.6 | 126.4±20.2 | 129.6±21.4 |
| 12 o'clock | 133.1±27.1 | 131.9±22.4 | 128.6±22.3 | 130.3±24.3 | 111.4±20.6 |