A disposable corneal trephine.
Postoperative astigmatism might be reduced in penetrating keratoplasty if surgeons could cut a straight-sided round hole in the recipient cornea and place in that hole a round donor button also having straight sides. We present a disposable trephine which assists in cutting a perfect graft by supporting the cornea with a suction ring while an uncommonly sharp, round blade traverses the tissue.
D016039:Corneal Transplantation; D004209:Disposable Equipment; D006801:Humans; D013525:Surgical Instruments; D014184:Transplantation, Homologous