17 patients(34 eyes,treatment group)with xerophthalmia of deficiency of Yin were treated with Ziyingmingmu pill and 19 patients(38 eyes,control group)teated with Yunshu Eye-drop for three courses,and each course for three months.The results showed that the treatment group was significantly superior to the control group in the changes of test of schirmer,test of BUT and Fluoreseenum Natrici staining of ocular surface,and that the treatment Ziyingmingmu pi...