Table 3 Comparisons of the Corvis ST measurements between thin, normal, and thick corneas.

From: Assessment of corneal biomechanics, tonometry and pachymetry with the Corvis ST in myopia

 

Mean ± SD

P

Corneathin

Corneanormal

Corneathick

Corneathin VS Corneanormal

Corneathin VS Corneathick

Corneanormal VS Corneathick

bIOP

14.72 ± 1.48

14.60 ± 1.55

14.72 ± 1.57

0.809

1.000

1.000

DA ratio 2

4.99 ± 0.42

4.51 ± 0.33

4.13 ± 0.29

< 0.001*

< 0.001*

< 0.001*

IR

9.27 ± 0.87

8.57 ± 0.91

7.55 ± 0.76

< 0.001*

< 0.001*

< 0.001*

ARTh

431.92 ± 77.08

456.55 ± 91.09

527.10 ± 92.06

0.140

 < 0.001*

 < 0.001*

SP-A1

79.21 ± 9.04

91.56 ± 9.79

102.54 ± 9.27

< 0.001*

 < 0.001*

 < 0.001*

Arc length

 − 0.13 ± 0.02

 − 0.14 ± 0.02

 − 0.15 ± 0.02

0.004*

 < 0.001*

0.038*

Defle A

1.00 ± 0.09

0.96 ± 0.09

0.90 ± 0.08

0.106

 < 0.001*

 < 0.001*

DefleA ratio 2

6.55 ± 0.77

5.73 ± 0.71

5.18 ± 0.72

 < 0.001*

 < 0.001*

0.001*

EMo

0.27 ± 0.07

0.26 ± 0.06

0.26 ± 0.06

0.329

0.437

0.965

ICR

0.16 ± 0.01

0.16 ± 0.02

0.14 ± 0.01

0.007*

 < 0.001*

 < 0.001*

A1L

2.19 ± 0.22

2.27 ± 0.22

2.45 ± 0.17

0.122

 < 0.001*

 < 0.001*

A1V

0.16 ± 0.02

0.15 ± 0.02

0.14 ± 0.02

0.009*

 < 0.001*

0.002*

A1T

7.34 ± 0.24

7.53 ± 0.26

7.68 ± 0.28

 < 0.001*

 < 0.001*

0.002*

A2L

1.76 ± 0.19

1.89 ± 0.23

2.19 ± 0.29

0.001*

 < 0.001*

 < 0.001*

A2V

 − 0.29 ± 0.02

 − 0.29 ± 0.03

 − 0.28 ± 0.02

0.464*

0.002*

0.059*

A2T

22.11 ± 0.30

22.11 ± 0.35

22.00 ± 0.34

1.000

0.141

0.151

HCT

17.28 ± 0.24

17.31 ± 0.26

17.30 ± 0.28

1.000

1.000

1.000

 

5.13 ± 0.21

5.06 ± 0.24

4.94 ± 0.23

0.457

 < 0.001*

0.002*

HCR

6.54 ± 0.54

6.88 ± 0.62

7.52 ± 0.54

0.002*

 < 0.001*

 < 0.001*

Def A

1.14 ± 0.10

1.11 ± 0.10

1.05 ± 0.08

0.229

 < 0.001*

 < 0.001*

CBI

0.55 ± 0.31

0.27 ± 0.26

0.05 ± 0.10

 < 0.001*

 < 0.001*

 < 0.001*

TBI

0.52 ± 0.24

0.33 ± 0.26

0.23 ± 0.21

 < 0.001*

 < 0.001*

0.047*

SSI

0.87 ± 0.14

0.88 ± 0.13

0.96 ± 0.13

1.000

0.001*

0.001*

  1. P values were adjusted for the age and SE difference. The adjusted age was 25.41 years, SE =  − 5.58D.
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