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目的研究翼状胬肉的超微结构改变。方法采用Ｈｕ－１２Ａ透射电镜对１４份翼状胬肉标本进行超微病理观查。结果翼状胬肉中存在正常和异常弹性纤维及胶原纤维。角膜上皮细胞下由于增生纤维的侵入，使Ｂｏｗｍａｎ膜破坏。翼状胬肉中还可见不同程度的血管增生和退变，血管增生与退变是影响翼状胬肉发生、发展的重要因素之一。结论弹性纤维的增生及变性是翼状胬肉突出的病理改变。前弹性纤维及变性弹性纤给是翼状胬肉的主要成分。
Objective To study the ultrastructural changes of pterygium. Methods Hu-12A transmission electron microscopy of 14 cases of pterygium specimens for ultra-pathological examination. Results There were normal and abnormal elastic fibers and collagen fibers in pterygium. Bowman’s membrane is destroyed by corneal epithelial cells invaded by proliferating fibers. Pterygium also visible varying degrees of vascular proliferation and degeneration, vascular proliferation and degeneration is the impact of the occurrence and development of pterygium, one of the important factors. Conclusion The proliferation and degeneration of elastic fibers are prominent pathological changes of pterygium. Former elastic fibers and denatured elastic fibers are the main components of pterygium.