Table 2.
Preoperative characteristics of patients in the control and comparison groups.
| Item | Control group (PresbyLASIK) | Comparison group (LAK) | P-value |
|---|---|---|---|
| Age (years) | 45.46 ± 6.88 | 43.57 ± 5.30 | 0.250 |
| Male-to-female ratio | 13:13 | 12:14 | |
| SE (dioptres) | −3.65 ± 1.68 | −3.73 ± 1.70 | 0.222 |
| UDVA | 0.83 ± 0.27 | 0.78 ± 0.42 | 0.315 |
| UNVA | 0.48 ± 0.35 | 0.42 ± 0.27 | 0.083 |
| Sum of corneal thickness deviations in four directions | 118.12 ± 34.09 | 109.13 ± 29.09 | 0.358 |
| Distance between the maximum posterior elevation and visual axis | 0.58 ± 0.59 | 0.62 ± 0.61 | 0.379 |
Data are shown as mean ± standard deviation.
Abbreviations: LAK, laser asymmetric keratectomy; PresbyLASIK, presbyopia laser-assisted in situ keratomileus; SE, spherical equivalent; UDVA, uncorrected distance visual acuity; UNVA, uncorrected near visual acuity.