Table 1 Demographic, preoperative and surgical information
Mean ± SD (range) | group 1 | group 2 | P Value |
|---|---|---|---|
Sex (female/male) | 18/12 | 22/8 | 0.31 |
Age (yrs) | 24.50 ± 6.81 (18~45) | 26.87 ± 6.09 (19~38) | 0.31 |
Manifest spherical equivalent (D) | −6.40 ± 1.29 (−8.25~ − 3.50) | − 10.06 ± 0.77 (− 11.75~ − 8.63) | < 0.01 |
Manifest cylinder (D) | −0.79 ± 0.60 (− 3.00~0) | −1.24 ± 1.05 (− 4.50~0) | 0.045 |
Preoperative LogMAR CDVA | 0.023 ± 0.049 (− 0.1~0.1) | 0.00 ± 0.045 (− 0.1~0.1) | 0.091 |
Preoperative CCT (μm) | 540.54 ± 30.08 (498~599) | 547.17 ± 25.09 (503~599) | 0.34 |
Lenticule thickness (μm) | 126.69 ± 21.24 (75~136) | 151.67 ± 4.79 (140~158) | < 0.01 |
Residual stromal thickness (μm) | 293.86 ± 35.60 (277~369) | 280.83 ± 18.73 (257~322) | 0.065 |
Optical zone (mm) | 6.48 ± 0.032 (6.0~6.6) | 6.12 ± 0.14 (6.0~6.5) | < 0.01 |