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Surgical Technique

Corneal transplants can be performed using general or local anesthetic plus intravenous sedation. To prepare the tissue for transplantation from the donor cornea, the surgeon punches out a corneal button from the central part of the donor cornea using a trephine. To create the recipient bed to receive the donor corneal button, the surgeon removes the central 60 to 80% of the host cornea using a trephine and scissors. The donor corneal button, which is trephined slightly larger than the recipient bed, is then sutured in place.