Table 3 Measurements (μm) and Comparisons of GCIPL Thickness between Six Age Groups

1: 18–29 years (n = 48)

24.0 ± 3.5

84.69 ± 4.56

82.13 ± 5.39

83.25 ± 4.78

86.44 ± 4.74

87.17 ± 5.46

85.19 ± 4.82

82.52 ± 4.58

83.81 ± 4.84

2: 30–39 years (n = 38)

34.3 ± 3.0

84.87 ± 5.86

82.03 ± 5.15

83.82 ± 5.43

85.84 ± 6.20

87.58 ± 7.44

85.32 ± 6.98

82.68 ± 6.24

84.21 ± 5.46

3: 40–49 years (n = 32)

43.6 ± 3.0

87.25 ± 5.94

83.31 ± 5.92

84.84 ± 5.47

88.72 ± 6.73

89.75 ± 6.92

88.16 ± 6.12

85.84 ± 6.46

86.06 ± 5.63

4: 50–59 years (n = 45)

55.4 ± 2.3

85.20 ± 3.84

81.56 ± 4.59

83.31 ± 5.42

86.53 ± 4.50

88.07 ± 3.80

86.00 ± 4.56

82.62 ± 3.98

84.47 ± 4.73

5: 60–69 years (n = 44)

63.9 ± 2.5

83.55 ± 4.97

80.34 ± 5.26

82.16 ± 5.20

83.95 ± 5.30

85.91 ± 5.60

83.77 ± 5.54

81.68 ± 5.49

83.52 ± 5.46

6: 70–79 years (n = 18)

72.6 ± 2.8

79.47 ± 6.32

76.06 ± 6.49

79.71 ± 5.68

80.59 ± 7.47

81.18 ± 6.61

78.47 ± 6.67

77.59 ± 7.20

79.18 ± 7.47

< 0.001

< 0.001

0.029

< 0.001

< 0.001

< 0.001

0.003

< 0.001

0.871

0.932

0.622

0.626

0.748

0.917

0.891

0.734

0.029

0.331

0.187

0.076

0.057

0.023

0.008

0.069

0.629

0.608

0.956

0.934

0.464

0.490

0.929

0.560

0.285

0.111

0.323

0.035

0.309

0.233

0.464

0.797

< 0.001

< 0.001

0.018

< 0.001

< 0.001

< 0.001

0.002

0.003

0.053

0.317

0.417

0.034

0.127

0.038

0.017

0.154

0.769

0.690

0.664

0.577

0.708

0.584

0.959

0.830

0.244

0.156

0.157

0.130

0.204

0.220

0.410

0.565

< 0.001

< 0.001

0.008

0.002

< 0.001

< 0.001

0.002

0.002

0.084

0.157

0.210

0.094

0.220

0.101

0.012

0.202

0.002

0.018

0.029

< 0.001

0.006

0.001

0.001

0.044

< 0.001

< 0.001

0.001

< 0.001

< 0.001

< 0.001

< 0.001

< 0.001

0.128

0.285

0.304

0.031

0.087

0.065

0.419

0.410

< 0.001

< 0.001

0.017

< 0.001

< 0.001

< 0.001

0.001

0.001

0.006

0.005

0.105

0.037

0.006

0.001

0.010

0.005