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Table 2 Globe biometry normative values with gender distribution in four-year-old Caucasian children (n = 62)

From: Macular perfusion normative data acquired with optical coherence tomography angiography in healthy four-year-old Caucasian children

Component

(measurement unit)

Male (n = 29)

Female (n = 33)

P value*

mean

SD

mean

SD

Age (months)

50.03

3.81

50.61

3.75

0.56

AL (mm)

22.29

0.56

22.05

0.48

0.08

ACD (mm)

3.44

0.25

3.39

0.29

0.50

LT (mm)

3.67

0.15

3.70

0.23

0.52

SE (D)

43.27

1.29

43.59

1.13

0.31

K1 (D)

42.88

1.25

43.16

1.09

0.35

K2 (D)

43.68

1.36

44.01

1.22

0.31

CCT (μm)

541.48

31.20

537.21

29.53

0.58

WTW (mm)

12.30

0.39

12.28

0.36

0.85

IOL (D)**

25.55

1.10

25.94

1.36

0.23

  1. n number of participants, AL axial length, ACD anterior chamber depth, LT lens thickness, K1 flat corneal meridian, K2 steep corneal meridian, SE spherical equivalent, CCT central corneal thickness, WTW white-to-white, IOL intraocular lens, SD standard deviation
  2. *Statistical significance was measured using Student’s t-test for independent samples (P < 0.05)
  3. **Acrysoft IQ monofocal SN60WF (Alcon Laboratories Inc., Fort Worth, Texas, USA), A-constant 118.7 using SRK-T formula