Table 3 Comparison of corneal topographic indices between participants based on HbA1c level

5.47 ± 0.34

6.70 ± 0.17

8.72 ± 1.16

K1 (D)

44.19 ± 1.59

44.24 ± 1.95

44.18 ± 1.54

0.869

K2 (D)

45.03 ± 1.70

45.14 ± 2.21

45.00 ± 1.55

0.901

Mean K (D)

44.60 ± 1.61

44.69 ± 2.06

44.59 ± 1.51

0.875

Kmax (D)

46.00 ± 1.94

46.14 ± 2.76

45.94 ± 1.70

0.961

Q-value

-0.42 ± 0.15

-0.43 ± 0.19

-0.43 ± 0.17

0.744

ISV

18.61 ± 8.75

19.81 ± 11.95

19.47 ± 10.48

0.412

IVA (mm)

0.15 ± 0.08

0.16 ± 0.12

0.16 ± 0.10

0.237

KI

1.02 ± 0.03

1.02 ± 0.04

1.02 ± 0.03

0.577

CKI

1.00 ± 0.01

1.00 ± 0.01

1.00 ± 0.01

0.629

IHA (µm)

5.95 ± 6.09

6.15 ± 5.45

6.02 ± 5.69

0.932

IHD (µm)

0.02 ± 0.01

0.02 ± 0.02

0.02 ± 0.01

0.631

PPImin

0.72 ± 0.26

0.74 ± 0.25

0.74 ± 0.23

0.276

PPIavg

1.00 ± 0.25

1.05 ± 0.30

1.02 ± 0.24

0.062

PPImax

1.30 ± 0.44

1.36 ± 0.47

1.33 ± 0.35

0.036

I-S value

-0.04 ± 0.89

0.05 ± 1.16

-0.05 ± 0.90

0.609

ARC (mm)

7.59 ± 0.28

7.58 ± 0.37

7.60 ± 0.29

0.982

PRC (mm)

6.16 ± 0.26

6.14 ± 0.35

6.15 ± 0.25

0.812