An important composition of yi heng has achieved a result shown in table 2 through the experiment of study on treatment for rats cataract with diabetes by the pharmacological and pathological teaching and research section of tianjin medical university 6胰衡,对白内障治疗作用胰衡中重要成份降糖素经天津医科大学药理病理教研室对“糖尿病大鼠白内障治疗性研究” ,实验结果如表2 。