Table 5.
Mean average endothelial cell size before and after cross-linking with P-values (μm)
| Parameters | Preoperative | 3 months | 6 months | 1 year | P-value |
|---|---|---|---|---|---|
| Keratoconus | |||||
| Mean | 355.35 | 389.43 | 359.25 | 355.38 | <0.001 |
| ±SD | 30.94 | 37.84 | 23.82 | 27.81 | |
| P1 | 0.000 | 1.000 | 1.000 | ||
| P2 | 0.000 | 0.000 | |||
| P3 | 0.238 | ||||
| PostlasiK ectasia | |||||
| Mean | 344.20 | 391.40 | 353.00 | 353.00 | 0.005 |
| ±SD | 16.94 | 38.48 | 19.24 | 21.67 | |
| P1 | 0.011 | 0.002 | 0.002 | ||
| P2 | 0.026 | 0.031 | |||
| P3 | 1.000 | ||||
Notes: Significant at P<0.05; repeated-measures ANOVA test followed by post hoc LSD was used for pairwise comparisons. P1: Significance relative to preoperative; P2: significance relative to 3-month period; P3: significance relative to 6-month period.
Abbreviations: ANOVA, analysis of variance; LASIK, laser-assisted in situ keratomileusis; LSD, least significant difference; SD, standard deviation.