在一个薄而有血管形成的角膜上,或给预期伤口延缓愈合的病人做角膜移植术,可能出现伤口漏水及虹膜粘连发生率增高的技术性问题。早在1949年,Franchesceti提出将一较大的植片移植到一较小的植床上可能减少上述并发症,然而没有临床研究证实这一主张。这种方法对那些需要较大移植片及角膜薄而有血管形成的病人,或者术后需用大剂量皮质类固醇的病人是有价值的。应用较大移植片术后较少发生伤口及粘连问题,这一临床印象很难用为化学烧伤、角膜瘢痕、疱疹性角膜病所做不同的角膜移植研究来证 In a thin, angiogenic cornea, or in a patient who is expected to have a delayed wound healing, there may be technical problems with wound leakage and increased incidence of iris adhesions. As early as 1949, Franchesceti proposed that transplanting a larger graft to a smaller implant may reduce these complications, but no clinical study confirms this claim. This method is of value for patients who require larger transplants and thin corneal angiogenesis, or who require large doses of corticosteroids after surgery. The application of a larger graft less incidence of wounds and adhesions, the clinical impression is difficult to use for chemical burns, corneal scars, herpes keratosis different corneal transplantation to prove the card