Table 1.

Preoperative patient demographics

Characteristics	Mean±SD	Range
Age (years)	54±43.73	40–54
Gender (male/female)	14/38
Axial length (mm)	28.9±2.06	25.13–32.96
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±1.76	39.5–47.40
K-steep (D)	44.89±1.87	40.50–49.10
CT (mm)	0.52±0.31	0.460–0.590
ATA, vertical (mm)	12.31±0.58	11.19–14.80
ATA, horizontal (mm)	12.01±0.58	10.67–13.74
WTW (mm)	11.68±0.41	11–13

ATA, angle-to-angle distance; CT, corneal thickness; D, dioptre; WTW, white-to-white.