[Corneal collagen cross-linking--results in keratoconus].

This work shows a retrospective evaluation of the patients with progressive keratoconus, stadium I, II, III, to which corneal collagen cross-linking was performed to stop the evolution. The patients were monitored by refraction, visual acuity, keratometry, pachimetry and topography. In all cases it was noticed an improvement or the maintenance of the followed parameters.