Abstract
Summary
1. Corneas frozen in liquid nitrogen can be grafted in rabbits, but invariably become opaque. Transplants of living corneal tissue, using the same technic as in the frozen, are successful and remain clear. 2. The use of frozen tissue is no handicap in the performance of the operation. 3. The results support the hypothesis that for the production of permanently clear corneal transplants living tissue must be used. 4. The data also support the suggestion that the corneal stroma of a clear graft retains its identity as donor tissue for a long period of time.
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