对透明角膜组织结构以任何简单化的定义都不可能括其全貌.事实上角膜组织是一个极为复杂,协调眼球组织内外环境的功能体系.至今角膜上皮细胞类型及其细胞机能仍不全清楚,尤其是与角膜神经纤维丰富而无血管这一特征相关连的细胞体更是知之甚少.本文提出角膜上皮中的APUD细胞系统将进一步了解角膜细胞类型及其机能,以期认识更多的角膜潜在功能.角膜组织在漫长的进化历程中获得丰富的神经纤维分布,这是角膜上皮旺盛的再生能力所凭借的形态结构基础,此种再生能力在对创伤的修复过程中可明显表达出来.角膜上皮再生主要由角膜上皮的基细胞增殖来进行,按照Binder For any simple definition of clear corneal tissue structure can not cover the whole picture.In fact, corneal tissue is a very complicated and coordinate the internal and external environment of the eye tissue function system.Up to now corneal epithelial cell types and their cellular function is still not fully understood, especially Is a cell body that is related to the feature of rich and non-vascular corneal nerve fibers.It is proposed that the APUD cell system in corneal epithelium will further understand the types of corneal cells and their functions so as to recognize more potential functions of the cornea Corneal tissue in the long evolutionary process to obtain a rich distribution of nerve fibers, which is the corneal epithelial regeneration ability to rely on the basis of the morphological structure, this regeneration ability in the wound repair process can be clearly expressed.Cystal epithelial regeneration Primarily by the proliferation of corneal epithelial cells, according to Binder