皮样囊肿是一种先天性眼病,临床多见幼畜和正在生长中的动物,任何家畜都可发生。这种良性的角膜肿瘤是角膜巩膜缘的结膜上生长出的扁平小突起,表面生长许多毛,在组织结构上和皮肤相似。由于突起上的毛对限的长期刺激,造成局部不适和结膜或角膜炎症,出现粘脓性分 Dermoid cysts is a congenital eye disease, more common in young animals and growing animals, any animal can occur. This benign keratinous neoplasm is a flat, small protrusion that grows on the conjunctiva of the limbus of the cornea. It grows many hairs on the surface and is similar in structure to the skin. Due to the protracted hair on the long-term stimulation, resulting in local discomfort and conjunctival or corneal inflammation, there purulent mucus