MANIFESTAÇÕES OCULARES DO HERPESVÍRUS FELINO-1

• DOI: https://doi.org/10.22533/at.ed.61724020213

• Palavras-chave: Herpesvírus Felino tipo 1; manifestações oculares; características clínicas.

• Keywords: Feline herpesvirus, ocular maniestation, clinical characteristics

• Abstract: Feline herpesvirus 1 (FeHV-1) is responsible for the development of upper respiratory tract diseases and eye diseases in domestic and wild felines worldwide. Young and adolescent animals are at greater risk of developing primary FeHV-1 infection. In general, the most common ocular clinical signs are conjunctivitis, corneal ulceration, keratitis, pain and blindness. A lack of specificity in clinical signs is common, and seems to be related to other eye diseases. Additionally, commercial vaccines do not provide complete protection to animals or latent development. In addition to the fact that FeHV-1 infection are even spread in wild animals. Infection present in nasal, oral and ocular conjunctivae is observed, with the virus being eliminated through the secretions of these systems for 1 to 3 weeks after infection. Contagion occurs through direct contact between animals and respiratory secretions, through sneezing, contaminated fomites or unhygienic handling practices. The risks of infection and reinfection are directly linked to the population density of animals in the environment and the degree of encounter with other animals, which may result in new subclinical viral elimination, in which the animal does not show clinical signs, or elimination with less severe symptoms. Thus, it is possible to identify that during FeHV-1 infection, the varied ocular symptoms associated with the severity of clinical signs and viral load make ocular diagnosis a major challenge for veterinarians. Therefore, in this chapter we will see that FeHV-1 can develop a wide spectrum of ocular and periocular diseases, whether in primary infection or recurrence, making it possible to observe neonatal ophthalmia, conjunctivitis, keratitis and may present dendritic ulceration or geographic ulceration of the cornea or chronic stromal, symblepharon, corneal sequestration, eosinophilic conjunctivitis associated with keratitis, keratoconjunctivitis sicca, calcified band keratopathy, periocular dermatitis and ocular anterior uveitis.