Implantation of the ICL phakic posterior chamber lens. In young patients with high myopia or hyperopia, with or without astigmatism, borderline vision or thin corneas, surgery to place this flexible lens may be the most suitable way to correct the existing refractive error. In these cases, and since May 1997, we have been implanting the intraocular lens known as ICL (short for “Implantable Contact Lens”) at Instituto de Oftalmología Castanera.