TABLE. MEAN KERATOMETRIC CORNEAL POWER AND ASTIGMATISM (DIOPTERS, MEAN ± STANDARD DEVIATION) AFTER PENETRATING KERATOPLASTY FOR KERATOCONUS AND FUCHS DYSTROPHY
| TIME AFTER PENETRATING KERATOPLASTY | ||||||||
|---|---|---|---|---|---|---|---|---|
| 13 mo | 5 yr | 10 yr | 15 yr | 20 yr | 25 yr | 30 yr | P* | |
| Mean keratometry | ||||||||
| Keratoconus | 44.8 ± 2.8 | 44.9 ± 2.7 | 45.4 ± 2.9 | 46.2 ± 3.3 | 47.1 ± 3.6 | 47.6 ± 2.3 | 49.4 ± 3.1 | <.001 |
| (n = 46) | (n = 57) | (n = 67) | (n = 53) | (n = 50) | (n = 24) | (n = 10) | ||
| Fuchs dystrophy | 46.1 ± 4.1 | 46.7 ± 2.9 | 46.3 ± 3.2 | 46.7 ± 2.9 | 46.6 ± 3.3 | NA | NA | .55 |
| (n = 39) | (n = 58) | (n = 52) | (n = 28) | (n = 23) | ||||
| Keratometric cylinder | ||||||||
| Keratoconus | 4.7 ± 2.9 | 3.7 ± 2.4 | 5.3 ± 3.5 | 6.1 ± 4.2 | 7.3 ± 4.8 | 6.9 ± 3.6 | 8.0 ± 5.3 | <.001 |
| (n = 46) | (n = 57) | (n = 67) | (n = 53) | (n = 50) | (n = 24) | (n = 10) | ||
| Fuchs dystrophy | 5.6 ± 2.9 | 4.3 ± 2.6 | 4.4 ± 3.0 | 5.3 ± 3.4 | 4.2 ± 2.2 | NA | NA | .55 |
| (n = 39) | (n = 58) | (n = 52) | (n = 28) | (n = 23) | ||||
1. NA, not applicable.
*
2. Over entire study period, generalized estimating equation model.