Sensitivity and specificity of SLP parameters and visual field indices according to the GDx and Humphrey databases
| Sensitivity | Specificity | |
| Symmetry | 18.1% | 81.3% |
| Superior ratio | 29.8% | 89.0% |
| Inferior ratio | 29.8% | 91.2% |
| Superior/nasal | 58.5% | 86.8% |
| Maximum modulation | 40.4% | 87.9% |
| Ellipse modulation | 26.6% | 97.8% |
| The number | 43.3% | 96.7% |
| Average thickness | 12.8% | 98.9% |
| Ellipse average | 22.3% | 96.7% |
| Superior average | 42.6% | 95.6% |
| Inferior average | 19.1% | 95.6% |
| Superior integral | 28.7% | 84.6% |
| GHT | 72.3% | 97.8% |
| MD | 83.0% | 94.5% |
| SF | 33.0% | 97.8% |
| CPSD | 79.8% | 92.3% |