One dog with melanocytoma of the third eyelid developed postoperative depigmenttation of the inferior lid margin after total third eyelid excision.At the 12-month follow-up, the recurrence of neoplasm was not recorded in any of the cases, for which all the owners were satisfied with the resulting aesthetics. None of the dogs that underwent third eyelid excision developed a displacement of intraorbital fat or keratoconjunctivitis sicca.