Table 1.
Intra- and interobserver variability (expressed in 10-3 units) for the achromatic settings for all three illumination conditions (Dark, D65, and CWF), all three test luminance levels (5, 20, and 50 cd/m2), and both navigation methods (UH method and u*v* method). The ratio between inter- and interobserver variability is independent of the navigation method.
| Dark |
D65 |
CWF |
Avg. over illuminants |
|||||||||
| Intra |
Inter |
Ratio |
Intra |
Inter |
Ratio |
Intra |
Inter |
Ratio |
Intra |
Inter |
Ratio |
|
| UH | ||||||||||||
| 5 cd/m2 | 9.6 | 14.9 | 1.55 | 6 | 14.7 | 2.45 | 6.2 | 13.7 | 2.21 | 7.3 | 14.4 | 1.99 |
| 20 cd/m2 | 6.4 | 9.1 | 1.42 | 4.7 | 7.7 | 1.64 | 5.2 | 8.8 | 1.69 | 5.4 | 8.5 | 1.57 |
| 50 cd/m2 | 5.3 | 10.2 | 1.92 | 5.6 | 8 | 1.43 | 5.4 | 9.3 | 1.72 | 5.4 | 9.2 | 1.69 |
| Lum. avg. | 7.1 | 11.4 | 1.61 | 5.4 | 10.1 | 1.87 | 5.6 | 10.6 | 1.89 | 6 | 10.6 | 1.77 |
| u*v* | ||||||||||||
| 5 cd/m2 | 11.5 | 18.3 | 1.59 | 8.2 | 15.9 | 1.94 | 7.2 | 13.7 | 1.90 | 9 | 16 | 1.78 |
| 20 cd/m2 | 10.2 | 14.7 | 1.44 | 6.7 | 14.1 | 2.10 | 7 | 13.3 | 1.90 | 8 | 14 | 1.76 |
| 50 cd/m2 | 8.8 | 15 | 1.70 | 7.2 | 11.8 | 1.64 | 7.7 | 12.2 | 1.58 | 7.9 | 13 | 1.65 |
| Lum. avg. | 10.2 | 16 | 1.57 | 7.4 | 13.9 | 1.89 | 7.3 | 13.1 | 1.79 | 8.2 | 14.2 | 1.73 |
| Avg. | 8.6 | 13.5 | 1.58 | 6.3 | 11.9 | 1.87 | 6.4 | 11.8 | 1.84 | 7.1 | 12.4 | 1.74 |