资料和方法:我们用光学显微镜检查了各种角膜溃疡50例,均系在1970—1978年之间介绍给眼科病理研究所的。其中男性28名,女性22名,平均年龄是74岁。角膜疾病的既往病史平均为21天。病例的病因见表Ⅰ。全部眼球按常规石蜡技术操作处理,切成8μm厚的切片。脱石蜡的水合物的切片置于 PH 为6.5的0.5M 磷酸盐缓冲剂中,用0.5%猪胰淀 a 粉酶在37℃中消化1小时。所有切片都用改良 Materials and Methods: We examined 50 cases of various types of corneal ulcers with light microscopy, all of which were introduced to the Institute of Ophthalmology and Pathology from 1970 to 1978. 28 were males and 22 were females, with an average age of 74 years. The history of corneal disease history averaged 21 days. The cause of the disease is shown in Table I. All eyes were processed by conventional paraffin technique and cut into 8 μm thick sections. Sections of deparaffinized hydrate were placed in 0.5 M phosphate buffer, pH 6.5, and digested with 0.5% porcine pancreatic amylase for 1 hour at 37 ° C. All slices are improved