Keratoplasty in keratoconus.
D000293:Adolescent; D000328:Adult; D016039:Corneal Transplantation; D006801:Humans; D007640:Keratoconus / Q000601:surgery*; D008722:Methods; D008846:Micromanipulation; D008875:Middle Aged; D011182:Postoperative Care; D011183:Postoperative Complications; D014184:Transplantation, Homologous; D014792:Visual Acuity