Table 1.

KERALINK inclusion and exclusion criteria

Inclusion criteria	Age at randomisation: 10–16 years
	Confirmed keratoconus diagnosis
	Progression on Pentacam topography in one or both eyes, steepest corneal meridian (K2) or Kmax>1.5 D
Exclusion criteria	Apical scarring
	Cone apex thickness <400 µm
	K2 >62.0 D or Kmax >70.0 D
	Rigid lens wear in both eyes and unable to abstain for 7 days pretopography examinations
	Down’s syndrome