Partial or total replacement of all layers of a central portion of the cornea.
http://www.cochrane.org/fr/CD009700/comparaison-de-la-keratoplastie-lamellaire-anterieure-profonde-et-de-la-keratoplastie-penetrante-pour-le-traitement-du-keratocone 2014 false false false France United Kingdom French french abstract review of literature keratoconus treatment outcome keratoplasty, penetrating corneal transplantation comparative study keratoplasty, penetrating corneal transplantation