Peer-reviewed veterinary case report
Peripheral corneal ulcers in the horse.
- Journal:
- Equine veterinary journal. Supplement
- Year:
- 1990
- Authors:
- Dice, P F & Cooley, P L
- Affiliation:
- Animal Eye Clinic · United States
- Species:
- horse
Plain-English summary
This report looks at five horses with a rare type of eye problem called peripheral corneal ulcers, which are sores on the outer part of the eye. These ulcers were found near the edge of the cornea and spread inward and around the eye. The horses, aged between two and a half and eight years, were in good health but had received different antibacterial treatments before being referred for further care. In three of the horses, a surgical procedure called conjunctivectomy was done, which showed a lot of certain immune cells in the eye tissue. All five horses tested negative for a specific bacterial infection, and they responded well to various treatments, including eye drops with steroids, surgery to remove damaged tissue, special contact lenses, and the conjunctivectomy.
Abstract
This report involves a retrospective study of five horses with an unusual form of progressive peripheral corneal ulcers. These ulcers were located at the perilimbal region of the cornea and spread both centripetally to mid periphery and circumferentially. Lipping of the epithelial edge was observed often. The depth ranged from superficial to mid stroma. Patients ranged from two and a half to eight years, both sexes, and were referred after a variety of antibacterial therapy. Histories were similar in that all ulcers were initially located adjacent to the limbus in one or more quadrants. No trauma was known to antedate the corneal disease and the patients were in good general health. Conjunctivectomy was performed in three patients which revealed an abundance of plasma cells and lymphocytes. All five cases were negative for a specific bacterial pathogen. Patients responded to a variety of treatment modalities: topical corticosteroid, surgical debridement, therapeutic soft contact lens (TSCL), and/or conjunctivectomy.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/9079110/