正常人角膜甚至在无任何病理过程的情况下,角膜上皮和基质也存在T淋巴细胞,散在于角膜周边,越近角膜中央数量越少。作者检查了20个供角膜移植用的新鲜供体角膜。切下角膜周边部分并在-20℃下作恒冷切片,使切片在室温中干燥,然后在丙酮中固定10分钟。用免疫过氧化物酶技术作淋巴细胞组织化学染色。结果发现在20个标本中16个有淋巴细胞。 Normal cornea Even in the absence of any pathological process, there are T cells in the corneal epithelium and stroma, scattered around the cornea, the closer to the cornea, the smaller the number. The authors examined 20 fresh donor corneas for corneal transplantation. The corneal peripheral portion was excised and subjected to cryosection at -20 ° C, the sections were dried at room temperature and then fixed in acetone for 10 minutes. Immunocytochemistry using lymphocyte histochemical staining. As a result, 16 of the 20 specimens were found to have lymphocytes.