Table 1. Central keratometry readings and central thickness for selected corneal pathologies; all patients measured with three different instruments.
| Pladico topography |
Scheimpflug camera |
SSOCT tomography |
|
|---|---|---|---|
| Keratoconic cornea | |||
| Anterior K1 (ax) | 7.38 mm 45.73 D (15°) | 7.47 mm 45.2 D (32.6°) | 7.41 mm 45.6 D (35.5°) |
| Anterior K2 (ax) | 6.33 mm 53.30 D (110°) | 6.51 mm 51.9 D (122.6°) | 6.59 mm 51.2 D (141.2°) |
| Posterior K1 (ax) | — | 6.08 mm −6.6 D (24,7°) | 6.07 mm −6.6 D (24.7°) |
| Posterior K2 (ax) | — | 5.02 mm −8.0 D (114.7°) | 5.6 mm −7.2 D (116.5°) |
| Central thickness | — | 499 µm | 492 µm |
| Cornea with postinfectious scar | |||
|---|---|---|---|
| Anterior K1 (ax) | 8.67 mm 38,93.1 D (80°) | 9.09 mm 37.1 D (29.5°) | 8.61 mm 39.2 D (166°) |
| Anterior K2 (ax) | 8.20 mm 41.17 D (165°) | 8.37 mm 40.3 D (119.5°) | 7.91 mm 42.7 D (76°) |
| Posterior K1 (ax) | — | 6.22 mm −6.4 D (159.9°) | 7.15 mm −5.6 D (120°) |
| Posterior K2 (ax) | — | 5.6 mm −7.1 (69.9°) | 6.76mm −6.0 D (30°) |
| Central thickness | — | 523 µm | 591 µm |
| Cornea after 5 penetrating keratoplasties | |||
|---|---|---|---|
| Anterior K1 (ax) | 38.38 D (165°) | 9.64 mm 35.0 D (146.5°) | 9.44 mm 45.8 D (146°) |
| Anterior K2 (ax) | 43.88 D (80°) | 7.98 mm 42.3 D (56.5°) | 6.82 mm 49.5 D (56°) |
| Posterior K1 (ax) | — | 8.39 mm −4.8 D (146.5°) | 7.03 mm −5.7 D (154.0°) |
| Posterior K2 (ax) | — | 5.73 mm −7.0 (56.5°) | 5.29 mm −7.6 D (64.0°) |
| Central thickness | — | 519 µm | 572 µm |