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April 1950


Author Affiliations

From the Second Eye Department, University of Vienna.

Arch Ophthalmol. 1950;43(4):769-771. doi:10.1001/archopht.1950.00910010782016

FLAWLESS excision of the cornea in the donor's and in the recipient's eye is of utmost importance to the final outcome of a partial penetrating corneal transplantation. Accurate performance of this part of the operation presents the main difficulty in an otherwise simple surgical procedure. Exact trephining of the donor's cornea can be achieved more easily because no special caution must be observed with respect to deeper structures of the eye. This is in contrast to the procedure on the patient's eye in which the technic of trephining must be carefully guarded because of the danger of injuring the iris, and particularly the lens. Generally it is advisable to discontinue the use of the trephine as soon as aqueous humor starts to escape and to complete excision by severing the remaining bridges of tissue with a pair of fine scissors. Most surgeons now prefer the hand trephine and believe that

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