Afterwards,all the rats in each group were anesthetized with 10% chloral hydrate. Eyes were extracted to make retinal paraffin and ultrathin sections for observation under light and electron microscopy.

• 大鼠以 10 %25水合氯醛麻醉 ,分别用 4 %25多聚甲醛液、3%25戊二醛灌流固定 ,摘取眼球 ,制成石蜡切片及超薄切片 ,应用光镜、电镜观察。