Figure 5. The effect of carnosine, aspirin and a combination of both eye drops on STZ-induced cataract rats at the 5th week. In the calculation of the incidence of lenses in various stages, total lenses in a group were considered to be 100%. Panel A was the normal control group, panel B was the diabetic rats untreated group, panel C was the diabetic rats treated with carnosine eye drops (1% only) group, panel D was the diabetic rats treated with aspirin eye drops (0.05% only) group, and panel E was the diabetic rats treated alternately with carnosine (1%) and aspirin (0.05%) eye drops group. These data suggested that the combination treatment with carnosine 1% and aspirin 0.05% eye drops delayed the occurrence and progression of STZ-induced diabetic cataract and the effect was better than that with aspirin 0.05% eye drops only.