Summary of psychophysical findings
| Case | Age (years) | HRR | D-15 | Mollon-Reffin “minimal” test | Anomaloscope | Cambridge computerised colour test |
|---|---|---|---|---|---|---|
| 1A | 8 | All correct | Normal | Slight elevation of discrimination threshold along deutan axis | Normal range | Slight elevation of discrimination thresholds along all three colour axes |
| 2A | 6 | All correct | Normal | Slight elevation of discrimination threshold along deutan axis | Normal range | Slight elevation of discrimination thresholds along all three colour axes |
| 3B | 8 | All correct | Slight elevation of discrimination thresholds along protan and deutan axes | Normal range | Slight elevation of discrimination thresholds along all three colour axes | |
| 4C | 14 | All correct | Normal | Normal | Normal range | Within the normal range along all three axes |
| 5C | 6 | 2 plates incorrect | 2 minor transpositions | Normal | Normal range | Slight elevation of discrimination thresholds along all three colour axes |
| 6D | 8 | 1 plate incorrect | 2 minor transpositions | Normal | Normal range | Slight elevation of discrimination thresholds along all three colour axes |









