Risk factors of emergence and clinical-ophthalmic characteristics of horses’ corneal abscess

Sotnikova L.F. and Goncharova A.V.
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Sotnikova L.F.: Federal State Budgetary Educational Institution of Higher Education «Moscow State Academy of Veterinary Medicine and Biotechnology - MVA named after K.I. Skryabin»
Goncharova A.V.: Federal State Budgetary Educational Institution of Higher Education «Moscow State Academy of Veterinary Medicine and Biotechnology - MVA named after K.I. Skryabin»

Russian Journal of Agricultural and Socio-Economic Sciences, 2016, vol. 50, issue 2, 31-38

Abstract: Nowadays the horse is used in sporting event so it is important to preserve the vital senses including vision. Despite the diversity of the eyeball abnormalities of horses, their poly etiology and the complexity of pathogenesis, this path is a priority for study. The act of seeing is provided by the connection of all structures of the eye, including the cornea, the main refracting medium, ensuring the passage of light into the eyeball and the implementation of the act. Keratopathy in horses occurs frequently and accounts for 65% of ocular pathologies in this species. This is due to the fact that the cornea is the most convex portion of the fibrous sheath and constantly exposed to the environment, the curvature of the cornea and the instability of the physiological barriers eyeball is also important. Due to active exploitation of horses the number of traumatic injuries of the cornea has increased and along with uncontrolled use of antibiotics, without taking into account their specificity,has led to the emergence of resistant cells and the development of abscess of the cornea. Corneal abscess is a type of keratopathy when microorganisms multiply into the base material (stroma) while the integrity of the stored flat multilayer epithelium is kept unchanged. This article describes the risk factors of the development of corneal abscess in horses and the pathogenesis of the disease. The clinical differential diagnostic signs of an abscess of the cornea are based on a comprehensive survey of the body and a designation of pathological changes in every department of the anterior segment of the eyeball (cornea, conjunctiva, iris and ciliary body) are determined and the manifestation of iridocyclitis is explained. The manifestation of two currents corneal abscess is grounded. In one case the pathology occurs with autoimmune phenomena keratolysis and melting corneal tissue along with difficult process of vascularization and visualization of the anterior chamber, in the second case it occurs without the phenomena keratomalacia so it allows to evaluate the state of the anterior uveal tract.

Keywords: ABSCESS OF THE CORNEA; KERATOLYSIS; KERATOMALACIA; VASCULARIZATION; OPTICAL PROPERTIES OF THE CORNEA; EXOGENOUS IRIDOCYCLITIS (search for similar items in EconPapers)
Date: 2016
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