Penetrating Keratoplasty

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Minimizing postoperative astigmatism is critical for visual rehabilitation after penetrating  keratoplasty. Surgeons recognize that uniform, symmetrical trephination of both donor and host corneas minimizes postoperative astigmatism after sutures are removed. The LATEST Single-Use vacuum trephine  and Artificial Chamber allow the surgeon to trephine both the recipient and donor cornea from the epithelial side, thus reducing shape disparity and postoperative astigmatism.


 The Trephine attaches firmly to the eye through suction applied to the limbal conjunctiva. Uniform support over the entire cornea during trephination prevents corneal vaulting.

From a fully retracted position, the blade rotates descending to a pre-set depth, after which the blades rotate, without further descent, cutting the displaced tissue and creating a uniform incision.