Table 2 The corneal refractive power distribution

 k1

42.89 ± 1.21

42.85 ± 1.38

39.07 ± 1.25

39.52 ± 1.91

0.26

39.23 ± 1.08

40.09 ± 1.65

0.02

 k2

42.85 ± 1.19

42.84 ± 1.38

39.01 ± 1.24

39.46 ± 1.87

0.26

39.12 ± 1.10

39.97 ± 1.61

0.02

 k3

42.80 ± 1.17

42.81 ± 1.38

38.93 ± 1.27

39.38 ± 1.81

0.25

39.01 ± 1.17

39.90 ± 1.58

0.01

 k4

42.75 ± 1.16

42.78 ± 1.37

38.87 ± 1.30

39.41 ± 1.76

0.17

38.96 ± 1.17

40.03 ± 1.57

0.003*

 k5

42.69 ± 1.15

42.74 ± 1.38

38.86 ± 1.30

39.52 ± 1.71

0.08

39.09 ± 1.10

40.33 ± 1.54

< 0.001*

 k6

42.61 ± 1.14

42.68 ± 1.37

38.94 ± 1.28

39.75 ± 1.66

0.03

39.46 ± 1.01

40.81 ± 1.53

< 0.001*

 k7

42.50 ± 1.14

42.57 ± 1.37

39.11 ± 1.23

40.06 ± 1.61

0.01

40.00 ± 0.98

41.26 ± 1.53

< 0.001*

 k8

42.32 ± 1.13

42.42 ± 1.37

39.39 ± 1.17

40.33 ± 1.57

0.008

40.64 ± 1.00

41.49 ± 1.52

0.01

 k1

42.02 ± 1.20

41.94 ± 1.36

37.45 ± 1.29

38.03 ± 1.95

0.16

37.78 ± 1.14

38.72 ± 1.68

0.01

 k2

42.03 ± 1.19

41.96 ± 1.37

37.41 ± 1.29

37.97 ± 1.92

0.17

37.71 ± 1.16

38.64 ± 1.65

0.01

 k3

42.06 ± 1.18

42.01 ± 1.37

37.38 ± 1.31

37.95 ± 1.88

0.16

37.65 ± 1.23

38.67 ± 1.59

0.005*

 k4

42.14 ± 1.15

42.12 ± 1.37

37.40 ± 1.36

38.05 ± 1.82

0.11

37.82 ± 1.25

39.01 ± 1.59

0.001*

 k5

42.26 ± 1.15

42.27 ± 1.41

37.52 ± 1.37

38.32 ± 1.77

0.05

38.24 ± 1.20

39.71 ± 1.59

< 0.001*

 k6

42.44 ± 1.16

42.46 ± 1.42

37.79 ± 1.34

38.80 ± 1.73

0.01

39.14 ± 1.09

40.77 ± 1.67

< 0.001*

 k7

42.62 ± 1.18

42.67 ± 1.44

38.26 ± 1.29

39.43 ± 1.71

0.003*

40.44 ± 1.10

41.99 ± 1.74

< 0.001*

 k8

42.82 ± 1.21

42.74 ± 1.42

38.94 ± 1.24

40.15 ± 1.69

0.002*

42.12 ± 1.19

43.23 ± 1.82

0.005*