Objective To assess the effects of buddleja officinalis flavones on interleukin-1β(IL-1β) expression in the lacrimal gland of castrated rats with dry eye.Methods Wistar rats in one month old were randomly divided into normal group,sham group,model group,androgen group and therapy group with Buddleja officinalis flavones.After model established,the rats were killed at 1 month,3 months and 5 months,and then,the pathomorphology changes of IL-1β in lacrimal gland were observed and IL-1β expression was detected with Immunohistochemistry.Result...