Table 1 Comparison of Scheimplug parameters between the keratoconus, forme fruste, and control group

46.75 ± 2.2

42.37 ± 1.2

42.3 ± 1.3

<0.001

0.3

<0.001

43.17 ± 2.02

41.94 ± 1.3

41.9 ± .8

<0.001

0.5

0.002

44.68 ± 1.7

43.01 ± 1.15

42.05 ± 1.17

<0.001

0.04

<0.001

494 ± 37.2

519 ± 31

520 ± 28.24

<0.001

0.04

0.002

464.17 ± 10

514.57 ± 5.8

516 ± 4.4

<0.001

0.1

<0.001

32.7 ± 4.3

5.6 ± 3.34

4.7 ± 2.14

<0.001

0.869

<0.001

25.6 ± 16.4

6.3 ± 3.2

5.6 ± 1.5

<0.001

0.02

<0.001

22.9 ± 11.7

6.39 ± 2.4

3.35 ± 1.6

<0.001

0.04

<0.001

1.8 ± 0.56

1.07 ± 0.09

0.11 ± .018

<0.001

0.3

<0.001

1.24 ± 0.39

0.65 ± 0.0.18

0.7 ± 0.13

<0.001

0.1

<0.001

25.64 ± 16.4

1.42 ± 0.2

6.3 ± 3.2

<0.001

<0.001

<0.001

280 ± 102.2

480 ± 42.4

478.8 ± 49.5

<0.001

0.6

<0.001

481.4 ± 264

832.01 ± 199.4

927 ± 225.5

<0.001

0.009

<0.001

187.43 ± 72.1

355 ± 51

392 ± 47

<0.001

<0.001

<0.001

6.7 ± 2.5

1.4 ± 0.5

1.29 ± 0.6

<0.001

0.02

<0.001