Table 3 Comparison of characteristics between subgroups formed based on corneal epithelial thickness at the initiation of medical treatment for myopic regression after LASIK
Group 1 CET ≤ 57 (n = 26) | Group 2 58 ≤ CET ≤ 61 (n = 32) | Group 3 CET ≥ 62 (n = 26) | P | |
|---|---|---|---|---|
Preop SE (D) | −4.4 ± 2.0 | −4.9 ± 1.8 | −6.5 ± 2.0 | 0.001 |
Age at operation | 23.8 ± 5.3 | 24.3 ± 4.6 | 26.5 ± 4.4 | 0.070 |
CCTini (μm) | 477.0 ± 26.6 | 474.2 ± 24.8 | 469.4 ± 27.3 | 0.546 |
CETini (μm) | 55.6 ± 1.3 | 59.2 ± 1.1 | 65.9 ± 4.0 | < 0.001 |
Good response (%) | 1 (3.8) | 6 (18.8) | 20 (76.9) | < 0.001 |
No response (%) | 15 (57.7) | 13 (40.6) | 1 (3.8) | < 0.001 |
SEini (D) | −1.18 ± 0.38 | − 1.22 ± 0.39 | −1.40 ± 0.45 | 0.126 |
dCET (μm) | −3.1 ± 2.0 | −5.4 ± 2.6 | −9.4 ± 3.3 | < 0.001 |
(−6, 1) | (− 11, 1) | (− 17, − 5) | ||
dSE (D) | −0.08 ± 0.35 | 0.04 ± 0.34 | 0.48 ± 0.55 | < 0.001 |
(− 1.25, 0.50) | (− 0.75, 0.75) | (− 0.50, 1.88) | ||
dUDVA | − 0.00 ± 0.11 | − 0.04 ± 0.09 | − 0.18 ± 0.11 | 0.001 |
(−0.25, 0.35) | (−0.25, 0.1) | (− 0.4, − 0.05) | ||
dK | −0.09 ± 0.25 | −0.16 ± 0.26 | −0.57 ± 0.37 | 0.001 |
(−0.75, 0.5) | (− 0.5, 0.25) | (− 1.25, 0.25) |