Abstract: Canine third eyelid hyperplasia was an ophthalmopathy, because of gland hypertrophy and other reasons with the nictitating membrane together from the eye turned outwards and induced inflammation, most of which were treated by excision method and embedding method. In order to research the advantages and disadvantages of excision method and embedding method for canine third eyelid hyperplasia, we used 20 dogs which both eyes had third eyelid hyperplasia and not suffer from other diseases, and divided into excision group and embedding group to do operation and track observation. The results showed that the excision method had simple operation,recovery time was short and other advantages, but the dogs would have the sequelae, dry eye disease after curement, there was great harm to their health. While embedding method's operation was complex, recovery time was longer, but as long as the operators mastered skilled operation, the cure effect could also be achieved, and would not have other bad effect on the dog. Although the two methods had their advantages and disadvantages, the disadvantages of excision method outweighed its advantages, sequelae would bring dogs more inconvenience, and embedding method had more advantages than disadvantages, as long as they could master the operation method,do well postoperative nurse, and overcome the drawbacks. In future clinical practice, we should try to persuade the dog's owner to use embedding method to treat the third eyelid hyperplasia.

Key words: canine; third eyelid hyperplasia; excision method; embedding method; comparison