Table 1

Preoperative demographics in eyes undergoing ICL implantation for low-to-moderate myopia and for high myopia

CharacteristicGroup 1 (low-to-moderate myopia)Group 2 (high myopia)p Value
Age34.8±7.4 years (range, 20 to 57 years)33.6±7.3 years (range, 18 to 54 years)0.32
GenderMale:female=20:37Male:female=130:1640.20
Manifest spherical equivalent−4.29±1.31 D (range, −0.50 to −5.88 D)−10.13±2.64 D (range, −6.00 to −18.63 D)<0.001
Manifest cylinder1.22±1.36 D (range, 0.00 to 6.50 D)1.20±1.00 D (range, 0.00 to 6.00 D)0.33
LogMAR UDVA1.06±0.27 (range, 0.15 to 1.52)1.46±0.20 (range, 0.82 to 2.00)<0.001
LogMAR CDVA−0.20±0.11 (range, −0.30 to 0.30)−0.17±0.09 (range, −0.30 to 0.15)0.001
White-to-white distance11.6±0.4 mm (range, 10.8 to 12.5 mm)11.6±0.4 mm (range, 10.6 to 12.7 mm)0.22
Anterior chamber depth3.08±0.27 mm (range, 2.80 to 4.02 mm)3.14±0.26 mm (range, 2.80 to 4.06 mm)0.13
Mean keratometric readings43.5±2.2 D (range, 37.4 to 51.1 D)43.9±1.4 D (range, 40.1 to 48.3 D)0.10
  • CDVA, corrected distance visual acuity; D, dioptre; ICL, implantable collamer lens; LogMAR, logarithm of the minimal angle of resolution; UDVA, uncorrected distance visual acuity.