CONCLUSION: Keratoconus is a noninflammatoy degenerative disease, we suggest apoptosis asa mode of cell death by observing its ultrastructure and TUNEL assay .

• 结论圆锥角膜是一种非炎症性疾病，通过对其超微结构的观察及TUNEL的检测，推测凋亡可能是圆锥角膜发生的细胞学基础。