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Home / Equine Research Bank / Equine Vet J / Equine keratomycoses in California from 1987 to 2010 (47 cas...
Equine veterinary journal2012; 45(3); 361-366; doi: 10.1111/j.2042-3306.2012.00623.x

Equine keratomycoses in California from 1987 to 2010 (47 cases).

Abstract: Equine keratomycosis in the western USA has received little study, probably owing to its low prevalence. Objective: To determine clinical features, predominant fungal isolates, treatment modalities and outcomes of horses with keratomycosis in California and compare these with results from different geographic regions. Methods: Records of horses presented to the University of California-Davis Veterinary Medical Teaching Hospital (UCD-VMTH) with confirmed keratomycosis between 1987 and 2010 were reviewed for this retrospective study. Information retrieved from the record included background, ophthalmic examination findings, treatment prior to and following presentation, visual outcome, and ocular survival. Results: A total of 48 eyes in 47 horses met the inclusion criteria and comprised 2% of cases presented to the UCD-VMTH ophthalmology service. Prior to presentation, 20 horses (43%) received at least one topically administered anti-inflammatory medication. Keratomycosis was confirmed by fungal culture in 38 horses (81%), by histopathology in 2 horses (4%) and by cytology in 7 horses (15%). Forty-four isolates were identified in the 38 horses cultured; Aspergillus was the most common isolate (64%) and a novel isolate, Papulospora, was identified in 2 horses. Treatment consisted of medication only (73%), medical and surgical treatment (25%), or immediate enucleation (2%). Globe retention was 77% and vision retention was 53%. Corneal perforation was significantly associated with loss of vision (P<0.001). Conclusions: Keratomycosis is relatively uncommon in horses presented for ophthalmic conditions at UCD-VMTH. Corneal perforation was a negative prognostic indicator for vision in this population of northern Californian horses.
© 2012 EVJ Ltd.
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Publication Date: 2012-09-04 PubMed ID: 22943420PubMed Central: PMC3515691DOI: 10.1111/j.2042-3306.2012.00623.xGoogle Scholar: Lookup
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Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

This research paper presents a comprehensive study of equine keratomycosis, a fungal eye disease in horses, in the state of California from 1987 to 2010. The study aims to understand the predominant fungal isolates causing the disease, the typical treatment methods employed, and the outcomes thereof.

Research Objectives

  • The study aims to ascertain the clinical features, main fungal strains responsible, treatments used, and outcomes for horses with keratomycosis in California. This data is later compared with similar information from different geographic regions.

Methodology

  • For this retrospective study, the researchers reviewed hospital records of horses diagnosed with keratomycosis that were presented to the University of California-Davis Veterinary Medical Teaching Hospital (UCD-VMTH) between 1987 and 2010.
  • Data gathered included the horse’s background, findings from ophthalmic examination, treatments given before and after the diagnosis, visual outcome, and ocular survival.

Results

  • A total of 48 eyes from 47 horses met the study’s criteria and made up 2% of all cases presented to UCD-VMTH’s ophthalmology service.
  • Prior to being presented, 43% of these horses had received topically administered anti-inflammatory medication.
  • Keratomycosis was confirmed through fungal culture in 81% of cases, histopathology in 4% of cases, and cytology in 15%. A fungus named Aspergillus was the most frequently isolated organism, retrieved from 64% of cultures, while another one, Papulospora, was identified in 2 horses.
  • The treatment strategies primarily consisted of medication (73%), both medical and surgical treatment (25%), or immediate removal of the eye (enucleation) in 2% of cases.
  • The research found that 77% of cases managed to retain the globe (eye) and 53% retained vision. Instances of corneal perforation were strongly connected with loss of vision.

Conclusions

  • Overall, the study indicates that keratomycosis is relatively rare in horses presented for eye conditions at the UCD-VMTH.
  • Important to note is the significant association between corneal perforation and vision loss, indicating these cases to have a negative prognosis.

Cite This Article

APA
Reed Z, Thomasy SM, Good KL, Maggs DJ, Magdesian KG, Pusterla N, Hollingsworth SR. (2012). Equine keratomycoses in California from 1987 to 2010 (47 cases). Equine Vet J, 45(3), 361-366. https://doi.org/10.1111/j.2042-3306.2012.00623.x

Publication

Equine veterinary journal
ISSN: 2042-3306
NlmUniqueID: 0173320
Country: United States
Language: English
Volume: 45
Issue: 3
Pages: 361-366

Researcher Affiliations

Reed, Z
  • William R. Pritchard Veterinary Medical Teaching Hospital, School of Veterinary Medicine, University of California, USA.
Thomasy, S M
    Good, K L
      Maggs, D J
        Magdesian, K G
          Pusterla, N
            Hollingsworth, S R

              MeSH Terms

              • Animals
              • Anti-Inflammatory Agents / therapeutic use
              • Antifungal Agents / therapeutic use
              • California / epidemiology
              • Eye Infections, Fungal / drug therapy
              • Eye Infections, Fungal / epidemiology
              • Eye Infections, Fungal / microbiology
              • Eye Infections, Fungal / veterinary
              • Fungi / classification
              • Fungi / isolation & purification
              • Horse Diseases / drug therapy
              • Horse Diseases / epidemiology
              • Horse Diseases / microbiology
              • Horses
              • Retrospective Studies

              Grant Funding

              • K08 EY021142 / NEI NIH HHS

              Conflict of Interest Statement

              . No competing interests have been declared.

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              This article has been cited 15 times.
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