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Equine keratomycosis in Japan
Shinya Wada1, Seiji Hobo, Hirotaka Ode
1Clinical Science and Pathobiology Division, Equine Research Institute ERI, The Japan Racing Association JRA, 321-4, Tokami-cho, Utsunomiya, Tochigi 320-0856, Japan. shinya_wada@jra.go.jp
Veterinary Ophthalmology
|March 1, 2012
Summary
Equine keratomycosis is a significant cause of infectious keratitis in Japan. Early diagnosis and aggressive antifungal treatment are crucial for better outcomes and vision preservation in affected horses.
Area of Science:
- Veterinary Ophthalmology
- Mycology
- Equine Infectious Diseases
Background:
- Equine keratomycosis is a serious corneal infection in horses.
- Understanding its incidence and characteristics in Japan is important for veterinary practice.
Purpose of the Study:
- To determine the incidence, clinical progression, visual outcomes, and laboratory findings of equine keratomycosis in Japan.
- To identify common fungal species causing keratomycosis in Japanese horses.
Main Methods:
- A retrospective study analyzed medical records of horses diagnosed with keratomycosis from 2005 to 2011.
- Clinical and mycological data were collected from equine hospitals in Japan.
Main Results:
- Eight horses (40%) were diagnosed with keratomycosis among infectious keratitis cases.
- Aspergillus flavus, Aspergillus niger, Fusarium solani, and Mortierella wolfii were identified as causative agents.
- Most horses received topical antifungal treatment, with one requiring surgery; vision was retained in most cases.
Conclusions:
- Equine keratomycosis represents a substantial part of infectious keratitis in Japan.
- Mortierella wolfii was a notable isolate not previously reported in Japanese equine keratomycosis.
- Prompt diagnostic evaluation and aggressive antifungal therapy are recommended for improved outcomes.
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