目前,角膜水肿是穿通性角膜移植术的最重要适应症之一。Fuchs氏角膜上皮-内皮营养不良、白内障手术并发症、炎症以及外伤是引起角膜水肿的一些常见原因。这类患者多为老年人,故白内障常伴有角膜水肿。角膜移植和其他内眼手术又能加速白内障的进展。著者将共于1970—1975年之间治疗的这类病人分为两组,加以比较。一组为先作穿通性角膜移植,然后再作白内障摘除手术,另一组为两种手术同时进行。在这两组病人,术前15—60分钟静脉给予20％甘露醉300—500毫升,必要时追加 Corneal edema is currently one of the most important indications for penetrating keratoplasty. Fuchs’ corneal epithelium - endothelial dystrophy, cataract surgery complications, inflammation and trauma are some common causes of corneal edema. Such patients are mostly elderly, so often accompanied by corneal edema. Corneal transplantation and other intraocular surgery can speed up the progression of cataracts. The authors divided these patients, treated between 1970 and 1975, into two groups and compared them. A group of first for penetrating keratoplasty, and then for cataract surgery, and the other for both operations at the same time. In these two groups of patients, preoperative 15-60 minutes intravenous infusion of 20% mannitol 300-500 ml, if necessary, additional