Table 2

Summary of patient demographics

CharacteristicTraining set (mean±SD)Testing set (mean±SD)
Count5890 eyes, 4013 patients1003 eyes, 1003 patients
GenderMale: 2573 eyes (43.7%),
Female: 3317 eyes (56.3%)
Male: 433 eyes (43.2%),
Female: 570 eyes (56.8%)
Age at surgery (years)71.00±9.4370.73±9.50
Preoperative K (D)43.87±1.5443.88±1.56
Preoperative AL (mm)24.17±1.3424.15±1.35
Preoperative LT (mm)4.53±0.444.53±0.45
Preoperative ACD (mm)3.26±0.413.25±0.41
Postoperative refraction (D)−0.55±0.85−0.59±0.93
  • ACD, anterior chamber depth; AL, axial length; D, dioptre; K, keratometry; LT, lens thickness.