Table 3.
Safety, efficacy, and predictability of SBK and thick-flap LASIK for moderate to high myopia (−4.0 to −10.0 D).
| Percentage | |||
|---|---|---|---|
| SBK (82–120 µm) | Thick-Flap LASIK (≥160 µm) | ||
| Parameter | (n = 33) | (n = 62) | P Value* |
| Safety (BSCVA) | |||
| Loss of 1 line | 27.27 | 8.06 | .012 |
| No loss | 48.48 | 72.58 | .020 |
| Gain of 1 line | 24.24 | 19.35 | .578 |
| Efficacy | |||
| ≥20/20 | 45.46 | 40.32 | .630 |
| ≥20/25 | 66.67 | 66.13 | .958 |
| ≥20/40 | 81.82 | 88.71 | .352 |
| Predictability | |||
| ±0.50 D | 51.52 | 58.06 | .541 |
| ±1.00 D | 78.79 | 82.26 | .681 |
BSCVA = best spectacle-corrected visual acuity; LASIK = laser in situ keratomileusis; SBK = sub-Bowman keratomileusis
*
Pearson chi square