UBM was used to observe 160 cases (189 eyes) with corneal edema, corneal opaque, PRK, PK and the manifestations on UBM were summarized.

• 方法应用超声生物显微镜对160例(189只眼)角膜水肿、角膜混浊、角膜屈光手术、角膜移植手术患者进行检查，对其超声表现进行总结。