Acquired keratoconus posticus.
D000328:Adult; D000368:Aged; D016039:Corneal Transplantation; D003320:Corneal Ulcer / Q000150:complications*; D005260:Female; D006801:Humans; D007640:Keratoconus / Q000209:etiology* / Q000473:pathology / Q000601:surgery; D008297:Male; D008875:Middle Aged