title: Corneal transplantation following prolonged storage in M-K medium.
abstract: A successful penetrating keratoplasty was performed on a 25-year-old keratoconus patient inadvertently using a 79-year-old donor cornea which had been stored for 32 days at 4 degrees C in M-K medium. A thin, clear graft ten months postoperatively suggested either recovery of the original donor endothelium or possible host endothelial cell migration. The clinical advantages of prolonged M-K storage beyond seven days versus the increased risks of endothelial decompensation and secondary infection are reviewed.
mesh_terms: D000328:Adult; D016039:Corneal Transplantation; D005125:Eye Banks; D006801:Humans; D007640:Keratoconus / Q000601:surgery*; D008297:Male; D009926:Organ Preservation