Table 1 Preoperative patient biometric ocular parameters

Axial length, mm*

23.33 (0.7)

21.21–31.98

Anterior chamber depth, mm

3.01 ± 0.44

1.69–4.28

Flat keratometry (K1), D

44.14 ± 1.71

39.77–49.36

Steep keratometry (K2), D

44.85 ± 1.71

40.65–50.76

Mean of keratometry (Km), D

44.49 ± 1.68

40.21–50.06

Corneal central thickness, µm

535.09 ± 34.13

439–649

Horizontal corneal diameter, mm

11.54 ± 0.46

9.89–13.07

Lens thickness, mm

4.47 ± 0.49

2.77–5.88

Axial length distribution, n (%)

AL<22.0 mm

29

8.63%

22.0 mm ≤ AL<26.0 mm

289

86.01%

AL ≥ 26.0 mm

18

5.36%

Keratometry subgroups, n (%)

Km<43.0D (Flat)

65

19.35%

43.0D ≤ Km<46.0D (Medium)

205

61.01%

Km ≥ 46.0D (Steep)

66

19.64%