目的：评价应用干燥保存角膜片对554例严重感染性角膜溃疡行治疗性角膜移植手术的效果。
AIM: to evaluate the clinical effects of therapeutic keratoplasty using donor corneas of dry preservation for 554 cases of severe infective corneal ulcer.
探讨对部分穿透性角膜移植手术后剩余的角膜缘材料加以保存和利用的可行性，为建立角膜缘组织库奠定基础。
This will provide the academic foundation for total penetrating keratoplasty in which the cryopreserved donor corneas and limbus regions are used.
早期实验证实大鼠作为穿透性角膜移植具有较好的重复性和可靠性，且移植手术难度比小鼠低。
It is verified in early experiments that penetrating corneal transplantation in rats is more repetition and reliability, and the operation difficulty is lower than that in mice.
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