Uso de recobrimento conjuntival em 360° no tratamento de ceratite ulcerativa com melting em cão braquicefálico.

Abstract

Ulcerative keratitis or cornea ulceration is one of the most common ophthalmologic pathologies in dogs. The ulcerations in melting are not a specific group, in other words, they may be observed as a concerning clinical sign of cornea ulceration, which occurs the most in brachycephalic breeds, due to the fact that its anatomic conformation promotes a huger ocular exposition. In the process of cornea healing, the collagenases and proteases are released to promote the removal of the debilitated cells. The corneal epithelial cells, fibroblasts, leukocytes, some types of bacteria and fungi produce these enzymes. The combination of the production of these enzymes in an endogenous and exogenous aspect promotes an exacerbated formation, which leads to the collagen consumption present on the stromal layer. Due to the collagen

consumption, the cornea presents itself as a melting shape. This study aims to present a clinical- surgical case report, which is focused on an ulcerative keratitis with borders in melting, on a

brachycephalic dog breed, a 4-year-old Shih tzu, which wastreated on the Vet Hospital of Natal, in Natal/RN. The animal presented signals of intense pain on the left eye and presence of a pointed aspect structure in the center of the cornea. The diagnosis was based on the clinical signs, biomyoscopy tests with slit lamp and fluorescein test. The treatment performed was a surgical method with 360o flap technique, associated with the clinical treatment, was effective and promoted the healing process on the cornea, controlling the process of melting.