Table 1.
Preoperative demographics of the study population undergoing conventional laser in situ keratomileusis (LASIK).
| Characteristic | Mean ± standard deviation |
|---|---|
| Age (years) | 34.4 ± 9.5 years (range, 23 to 58 years) |
| Gender (% female) | 63.2% |
| Manifest spherical equivalent (D) | −6.70 ± 2.52 D (range, −3.00 to −12.75 D) |
| Manifest cylinder (D) | 0.76 ± 0.67 D (range, 0.00 to 3.00 D) |
| LogMAR UDVA | 1.32 ± 0.22 (range, 0.82 to 2.00) |
| LogMAR CDVA | −0.10 ± 0.05 (range, −0.18 to 0.00) |
| Mean keratometric readings (D) | 43.6 ± 1.3 D (range, 40.5 to 47.4 D) |
| Central cornea thickness (μm) | 545.4 ± 30.6 μm (range, 479 to 612 μm) |
| Intraocular pressure (mmHg) | 15.0 ± 2.3 mmHg (range, 9 to 20 mmHg) |
| Endothelial cell density (cells/mm2) | 2725 ± 265 cells/mm2 (range, 1990 to 3246 cells/mm2) |
D = diopter, LogMAR = logarithm of the minimal angle of resolution, UDVA = uncorrected distance visual acuity, and CDVA = corrected distance visual acuity.