Table 7.
Mean minimum endothelial cell size before and after cross-linking with P-values (μm)
| Parameters | Preoperative | 3 months | 6 months | 1 year | P-value |
|---|---|---|---|---|---|
| Keratoconus | |||||
| Mean | 109.63 | 120.55 | 117.13 | 111.57 | 0.036 |
| ±SD | 12.60 | 14.30 | 13.76 | 12.00 | |
| P1 | 0.027 | 0.083 | 0.658 | ||
| P2 | 1.000 | 0.032 | |||
| P3 | 0.212 | ||||
| PostLASIK ectasia | |||||
| Mean | 110.60 | 121.00 | 119.20 | 114.40 | 0.55 |
| ±SD | 12.73 | 12.74 | 8.20 | 7.32 | |
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.