Skip to main content

Table 1 Definition of the groups investigated in this study

From: Impact of keratoconus stage on outcome after corneal crosslinking

Stage

Kmax

Morphological characteristics

Group I

<  48 dpt

Vogt’s striae, no corneal scars, corneal thickness ≥ 400 μm

Group II

48–53 dpt

No central scars, corneal thickness ≥ 400 μm

Group III

>  53 dpt

No central scars, corneal thickness ≥ 400 μm

  1. Modified Krumeich classification system of keratoconus stages defined by the presented parameters