翼状胬肉的病因至今尚无定论:有人认为是炎症过程;有人认为是成纤维细胞增生后的原发性角膜变性;还有人认为是弹力纤维发育异常而产生的弹力纤维变性所致。作者研究证明了翼状胬肉的病因有免疫学机制。作者对26例患者手术切除的胬肉组织用直接免疫荧光法进行了研究。先将切除的胬肉在-20℃贮存,冷冻切片厚度6μm。用直接免疫荧光法测定胬肉组织中的lgG、lgE、IgA和IgM。切片在波长为300—450nm的紫外线显微镜 The etiology of pterygium has so far been inconclusive: Some people think that is the inflammatory process; some people think that primary fibroblast proliferation of primary corneal degeneration; there are people think that the development of elastic fibers caused by the elastic fiber degeneration. The study shows that the cause of pterygium immunological mechanisms. The authors studied 26 cases of surgically resected pterygium using direct immunofluorescence. First excised pterygium stored at -20 ℃, frozen section thickness 6μm. Direct immunofluorescence was used to determine lgG, lgE, IgA and IgM in pterygium. Slices were taken in a UV microscope with a wavelength of 300-450 nm