Table 3 Repeatability and reproducibility of retinal nerve fiber layer thickness measurements.
Triton 12 × 9 mm2 Wide Scan | Triton 6 × 6 mm2 Optic Disc Scan | Maestro 12 × 9 mm2 Wide Scan | Maestro 6 × 6 mm2 Optic Disc Scan | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
SD | Limit | CV% | SD | Limit | CV% | SD | Limit | CV% | SD | Limit | CV% | |
Repeatability | ||||||||||||
Normal group | ||||||||||||
Average | 0.9 | 2.6 | 0.9 | 0.8 | 2.1 | 0.7 | 1.3 | 3.7 | 1.2 | 0.8 | 2.2 | 0.8 |
Superior | 2.9 | 8.2 | 2.3 | 2.1 | 6.0 | 1.6 | 3.9 | 11.0 | 3.0 | 2.5 | 7.1 | 1.9 |
Nasal | 1.7 | 4.8 | 1.9 | 1.4 | 3.9 | 1.6 | 2.0 | 5.7 | 2.3 | 1.5 | 4.1 | 1.7 |
Inferior | 2.2 | 6.3 | 1.6 | 1.4 | 4.0 | 1.0 | 2.7 | 7.6 | 1.9 | 2.1 | 5.8 | 1.5 |
Temporal | 1.0 | 2.9 | 1.4 | 0.8 | 2.2 | 1.1 | 1.2 | 3.3 | 1.7 | 1.1 | 3.0 | 1.5 |
Glaucoma group | ||||||||||||
Average | 1.1 | 3.0 | 1.4 | 1.0 | 2.8 | 1.3 | 1.5 | 4.1 | 1.9 | 1.2 | 3.4 | 1.6 |
Superior | 2.3 | 6.4 | 2.6 | 2.6 | 7.2 | 2.9 | 3.4 | 9.6 | 4.0 | 2.4 | 6.8 | 2.8 |
Nasal | 1.8 | 5.1 | 2.9 | 1.7 | 4.7 | 2.7 | 3.1 | 8.7 | 5.1 | 2.5 | 6.9 | 4.1 |
Inferior | 2.3 | 6.5 | 2.5 | 1.9 | 5.2 | 2.0 | 3.0 | 8.3 | 3.3 | 2.7 | 7.6 | 3.0 |
Temporal | 1.1 | 3.0 | 1.7 | 0.9 | 2.5 | 1.5 | 1.2 | 3.4 | 2.0 | 1.4 | 3.9 | 2.4 |
Reproducibility | ||||||||||||
Normal group | ||||||||||||
Average | 1.1 | 3.1 | 1.0 | 1.0 | 2.9 | 1.0 | 1.4 | 3.9 | 1.3 | 1.0 | 2.9 | 1.0 |
Superior | 3.1 | 8.7 | 2.4 | 2.4 | 6.6 | 1.8 | 4.2 | 11.8 | 3.2 | 2.6 | 7.2 | 2.0 |
Nasal | 2.1 | 6.0 | 2.4 | 1.7 | 4.8 | 2.0 | 2.3 | 6.4 | 2.6 | 1.8 | 5.0 | 2.1 |
Inferior | 2.3 | 6.5 | 1.7 | 1.8 | 5.0 | 1.3 | 3.1 | 8.6 | 2.2 | 2.4 | 6.6 | 1.7 |
Temporal | 1.4 | 3.9 | 2.0 | 1.1 | 3.0 | 1.6 | 1.3 | 3.7 | 1.8 | 1.3 | 3.7 | 1.9 |
Glaucoma group | ||||||||||||
Average | 1.2 | 3.4 | 1.6 | 1.3 | 3.5 | 1.7 | 1.7 | 4.8 | 2.3 | 1.3 | 3.7 | 1.8 |
Superior | 2.6 | 7.2 | 2.9 | 2.8 | 7.9 | 3.2 | 3.6 | 10.1 | 4.2 | 2.6 | 7.2 | 3.0 |
Nasal | 2.2 | 6.1 | 3.4 | 1.9 | 5.4 | 3.2 | 3.7 | 10.2 | 6.0 | 2.9 | 8.2 | 4.9 |
Inferior | 2.5 | 7.0 | 2.7 | 2.1 | 5.9 | 2.3 | 3.3 | 9.1 | 3.6 | 2.7 | 7.6 | 3.0 |
Temporal | 1.3 | 3.6 | 2.1 | 1.1 | 3.0 | 1.8 | 1.3 | 3.7 | 2.2 | 1.5 | 4.2 | 2.6 |
