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一、穿透性角膜移植术受体眼的命运取决于供体眼的角膜内皮,这是穿透性角膜移植术成功与否的关键。假如把一个50岁的角膜(供体)移植于20岁的患者(受体),那么20年后,供体角膜内皮已70岁,受体角膜却只40岁。此时会发生什么变化?其代偿力如何?值得关注。近代对角膜内皮的研究已有很好的仪器。用角膜内皮显微镜检查证实:正常眼的角膜内皮细胞数。青年人多于老年人,且随年龄的增加,细胞密度减少。因此,认为老年人的角膜不适于作
First, the penetrating keratoplasty The fate of the recipient eye depends on the corneal endothelium of the donor eye, which is the key to the success of penetrating keratoplasty. If a 50-year-old cornea (donor) is transplanted to a 20-year-old patient (recipient), then 20 years later, the donor corneal endothelium is 70 years old and the recipient cornea is only 40 years old. What happens at this time? What is the compensatory power? It is worth attention. Modern research on corneal endothelium has a good instrument. Corneal endothelial microscopy confirmed: the normal corneal endothelial cells. More young than the elderly, and with increasing age, cell density decreased. Therefore, the cornea of the elderly is considered inappropriate