Table 4.
The mean±standard deviation changes of parameters after the procedures in the two groups
| Parameter | Epithelium-removal CXL group (n=34) | Daya CXL group (n=30) | P |
|---|---|---|---|
| UCVA (logMAR) | −0.1±0.11 | −0.02±0.18 | 0.868 |
| BCVA (logMAR) | −0.04±0.12 | −0.02±0.14 | 0.937 |
| SE (D) | −0.21±1.1 | +0.32±1.6 | 0.0001* |
| Front mean K (D) | −0.1±1.3 | −0.1±1.6 | 0.259 |
| Front K-max (D) | −0.6±1.8 | −0.7±1.5 | 0.372 |
| Back K-max (D) | +0.12±1.1 | +0.13±1.3 | 0.109 |
| Apex pachymetry (µm) | −23±11 | −2±6 | 0.0001* |
| Thinnest pachymetry (µm) | −25±8 | −3±7 | 0.0001* |
| Min Epi (µm) | +0.01±0.22 | +0.01±0.18 | 0.483 |
| Max Epi (µm) | −0.02±0.31 | +0.01±0.41 | 0.081 |
| S (µm) | −0.08±0.26 | +0.03±0.33 | 0.028* |
| I (µm) | −0.01±0.21 | +0.03±0.18 | 0.363 |
*Indicates for statistically significant P value, (P<0.05). CXL: Corneal collagen cross-linking, UCVA: Uncorrected visual acuity, BCVA: Best corrected visual acuity, SE: Spherical equivalent, D: Diopter, Mean K: Mean keratometry, K-max: Maximum keratometry, Min Epi: Minimum epithelial thickness, Max Epi: Maximum epithelial thickness, S: Superior epithelial thickness, I: Inferior epithelial thickness, BCL: Bandage contact lens