Table V.
Additional psychophysical measures: Cone Contrast Test
| Measure | Statistic | Early | Intermediate | Normal | P-value Overall | P-value Early vs Intermediate | P-value Early vs Normal | P-value Intermediate vs Normal |
|---|---|---|---|---|---|---|---|---|
| CCT (%) | ||||||||
| Red | N | 33 | 47 | 21 | 0.06 | 0.13 | 0.24 | 0.03 |
| Mean (SD) | 65.30 (11.11) | 56.81 (19.88) | 66.90 (21.88) | |||||
| Min, Median, Max | 50.0, 70.0, 90.0 | 10.0, 60.0, 85.0 | 5.0, 70.0, 95.0 | |||||
| Green | N | 33 | 46 | 21 | 0.01 | 0.06 | 0.15 | 0.01 |
| Mean (SD) | 71.97 (11.99) | 60.11 (23.23) | 74.76 (18.13) | |||||
| Min, Median, Max | 30.0, 75.0, 90.0 | 0.0, 70.0, 90.0 | 10.0, 80.0, 95.0 | |||||
| Blue | N | 33 | 47 | 21 | 0.02 | 0.06 | 0.29 | 0.01 |
| Mean (SD) | 77.42 (16.35) | 67.34 (23.19) | 81.43 (17.19) | |||||
| Min, Median, Max | 45.0, 80.0, 100.0 | 0.0, 70.0, 100.0 | 40.0, 90.0, 100.0 |
Overall p-value based on Kruskal-Wallis test of difference among medians.
Pair-wise p-values based on Wilcoxon rank sum test of difference between medians.