Research progress on animal models of non-Sjogren syndrome dry eye

Dry eye is a multifactorial disease, which seriously affect the work and life of patients. Since the pathogenesis of dry eye has not been clarified so far, there is no standard animal model available now. Non-Sjögren syndrome dry eye is one of the main types of dry eye, which requires further research. Studies on dry eye mechanisms have led to the development and improvement of animal models. In this paper, the methods of animal models of non-Sjögren syndrome dry eye, including drug treatments, surgery, exogenous injury, behavioral patterns, changes in diet, are reviewed. In addition,different models are described, the problems are analyzed and perspectives and reflections on future research are offered.