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    Finding alternative techniques for eyes with failed PK


    Depressing data

    Findings from the Singapore Corneal Transplant Study (SCTS) and the Australian Corneal Graft Registry (ACGR) show how graft survival rates for PK decrease progressively over time. The data also show how the graft survival rates vary depending on the indication, but it is clear that repeat PK carries a poor long-term graft prognosis, Dr. Tan said.

    “Furthermore, there are data showing that high-risk PKs (e.g., repeat PKs) have even lower survival rates than liver transplants,” he said.

    “We always thought the cornea had immune privilege, but this is the reality check we have for PK,” he said. “What are we doing performing repeat PK?”

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