Mild

Moderate

Severe

H

p-value

Corneal RGP (N)

3

55

53

Visual acuity

1.05

0.592

Refractive change

1.62

0.443

Scleral lenses (N)

0

13

0

Visual acuity

2.24

0.134

Refractive change

1.14

0.285