Table 2.
Prognostic factors for poor visual outcome at final postoperative visit following accelerated corneal collagen cross-linking for progressive keratoconus
| Parameters | CDVA > 0.3 LogMAR | CDVA ≤ 0.3 LogMAR | P-value |
|---|---|---|---|
| (N = 42) | (N = 10) | ||
| Age, years | 24.23 ± 5.38 | 26.30 ± 8.09 | 0.33 |
| Gender | 0.28 | ||
| Female | 15 | 6 | |
| Male | 27 | 4 | |
| Laterality | 0.48 | ||
| Right eye | 20 | 6 | |
| Left eye | 22 | 4 | |
| Preoperative CDVA, LogMAR | 0.18 ± 0.16 | 0.37 ± 0.20 | 0.002 |
| Preop Kmax, D | 59.16 ± 5.57 | 64.26 ± 7.23 | 0.018 |
| Preop K1, D | 47.24 ± 4.04 | 48.79 ± 4.81 | 0.30 |
| Preop K2, D | 50.80 ± 4.42 | 52.02 ± 4.75 | 0.44 |
| Preop Kmean, D | 49.01 ± 4.16 | 50.41 ± 4.71 | 0.36 |
| Preop astigmatism, D | 3.56 ± 1.57 | 3.23 ± 1.58 | 0.56 |
| Preop TCP, μm | 449.43 ± 34.59 | 438.40 ± 39.28 | 0.38 |
Mean values are presented in mean ± standard deviation (SD). Significant p-values (<0.05) are underlined. Unpaired t-test and Fisher exact test were used for statistical analysis
CDVA corrected-distancevisual acuity, Kmax maximum keratometric reading, D dioptres, K1 flattest keratometric meridian, K2 steepest keratometric meridian, Kmean mean keratometry, TCP thinnest corneal pachymetry