Table 1

Preoperative patient demographics

CharacteristicsMean±SDRange
Age (years)54±43.7340–54
Gender (male/female)14/38
Axial length (mm)28.9±2.0625.13–32.96
Refraction sphere (D)−12.88±3.71−21.00 to −4.00
Refraction cylinder (D)−1.29±1.08−4.00 to 0
Spherical equivalent (D)−13.52±3.78−22.88 to −5.63
K-flat (D)43.43±1.7639.5–47.40
K-steep (D)44.89±1.8740.50–49.10
CT (mm)0.52±0.310.460–0.590
ATA, vertical (mm)12.31±0.5811.19–14.80
ATA, horizontal (mm)12.01±0.5810.67–13.74
WTW (mm)11.68±0.4111–13
  • ATA, angle-to-angle distance; CT, corneal thickness; D, dioptre; WTW, white-to-white.