Table 4 Changes in parameters from baseline after accelerated crosslinking with 18 mW/cm2 (Group 1) and 9 mW/cm2 (Group 2) in mild to moderate and advanced keratoconus at 12 months
From: Different accelerated corneal collagen cross-linking treatment modalities in progressive keratoconus
Mild to Moderate Keratoconus | Advanced Keratoconus | |||||
|---|---|---|---|---|---|---|
Group 1 (n = 23) (Mean ± SD) | Group 2 (n = 17) (Mean ± SD) | P | Group 1 (n = 14) (Mean ± SD) | Group 2 (n = 12) (Mean ± SD) | P | |
UCVA (LogMAR) | −0.12 ± 0.18 | − 0.07 ± 0.17 | 0.354 | −0.14 ± 0.26 | −0.11 ± 0.25 | 0.803 |
BCVA (LogMAR) | −0.07 ± 0.11 | −0.10 ± 0.13 | 0.515 | −0.13 ± 0.14 | −0.19 ± 0.16 | 0.37 |
K1 (D) | −0.01 ± 0.54 | −0.22 ± 2.43 | 0.688 | 0.20 ± 0.95 | − 1.08 ± 1.16 | 0.005 |
K2 (D) | 0.05 ± 0.61 | − 0.82 ± 1.13 | 0.003 | 0.14 ± 1.03 | − 1.06 ± 1.37 | 0.019 |
AvgK (D) | 0.01 ± 0.53 | − 0.82 ± 1.10 | 0.003 | 0.16 ± 0.90 | − 1.06 ± 1.21 | 0.007 |
Cycl (D) | 0.06 ± 0.41 | − 0.01 ± 0.60 | 0.619 | − 0.06 ± 0.77 | 0.02 ± 0.67 | 0.757 |
AKf (D) | − 0.69 ± 1.36 | −1.54 ± 1.47 | 0.067 | − 0.94 ± 1.95 | −2.27 ± 1.68 | 0.078 |
AKb (D) | 3.89 ± 5.69 | 4.97 ± 4.80 | 0.531 | 3.40 ± 6.82 | 4.91 ± 3.82 | 0.504 |
Slf (D) | −0.28 ± 0.66 | −0.64 ± 0.90 | 0.153 | − 0.44 ± 1.27 | −1.21 ± 0.56 | 0.065 |
Slb (D) | 0.13 ± 0.25 | 0.12 ± 0.22 | 0.827 | − 0.02 ± 0.25 | −0.02 ± 0.36 | 0.94 |
Thin (μm) | −21.08 ± 23.60 | −42.00 ± 28.61 | 0.016 | − 18.21 ± 15.65 | −38.58 ± 21.21 | 0.01 |
Vol (mm3) | −0.93 ± 1.46 | −1.13 ± 2.83 | 0.777 | − 1.18 ± 1.9 | − 1.48 ± 2.73 | 0.747 |
CCT (μm) | − 11.82 ± 18.94 | −21.05 ± 20.15 | 0.146 | − 9.92 ± 18.77 | −24.58 ± 23.86 | 0.092 |