Clinical appearances, healing patterns, risk factors, and outcomes of horses with fungal keratitis: 53 cases (1978-1996)

James E. Gaarder From the Department of Clinical Sciences (Gaarder, Rebhun, Ball, Erb) and Diagnostic Laboratory (Patten, Shin), College of Veterinary Medicine, Cornell University, Ithaca, NY 14853-6401.

Search for other papers by James E. Gaarder in
Current site
Google Scholar
PubMed
Close
 DVM
,
W. C. Rebhun From the Department of Clinical Sciences (Gaarder, Rebhun, Ball, Erb) and Diagnostic Laboratory (Patten, Shin), College of Veterinary Medicine, Cornell University, Ithaca, NY 14853-6401.

Search for other papers by W. C. Rebhun in
Current site
Google Scholar
PubMed
Close
 DVM
,
M. A. Ball From the Department of Clinical Sciences (Gaarder, Rebhun, Ball, Erb) and Diagnostic Laboratory (Patten, Shin), College of Veterinary Medicine, Cornell University, Ithaca, NY 14853-6401.

Search for other papers by M. A. Ball in
Current site
Google Scholar
PubMed
Close
 DVM
,
V Patten From the Department of Clinical Sciences (Gaarder, Rebhun, Ball, Erb) and Diagnostic Laboratory (Patten, Shin), College of Veterinary Medicine, Cornell University, Ithaca, NY 14853-6401.

Search for other papers by V Patten in
Current site
Google Scholar
PubMed
Close
 BS
,
Sang Shin From the Department of Clinical Sciences (Gaarder, Rebhun, Ball, Erb) and Diagnostic Laboratory (Patten, Shin), College of Veterinary Medicine, Cornell University, Ithaca, NY 14853-6401.

Search for other papers by Sang Shin in
Current site
Google Scholar
PubMed
Close
 DVM
, and
H. Erb From the Department of Clinical Sciences (Gaarder, Rebhun, Ball, Erb) and Diagnostic Laboratory (Patten, Shin), College of Veterinary Medicine, Cornell University, Ithaca, NY 14853-6401.

Search for other papers by H. Erb in
Current site
Google Scholar
PubMed
Close
 DVM

Click on author name to view affiliation information

Objective

To compare initial clinical appearances, healing mechanisms, risk factors, and outcomes of horses with fungal keratitis.

Design

Retrospective analysis.

Animals

52 horses (53 eyes) with fungal keratitis.

Procedure

Medical records and clinical photographs of eyes were reviewed. Keratomycoses were categorized on the basis of clinical appearance at initial examination and pattern of healing.

Results

Five distinct forms of mycotic keratitis were recognized. Of 53 affected eyes, 34 (64%) retained sight and had varying degrees of corneal scarring after treatment, 6 (11%) had a cosmetic appearance but were blind, and 13 (25%) were enucleated. Bacterial-like ulcers were the most frequent type and the most difficult for predicting outcome. Eyes affected by superficial fungal keratitis were likely to be chronically infected and to require debridement and extended treatment but usually healed with minimal scarring. Keratomycosis with a surrounding furrow resulted in a grave prognosis. Aspergillus organisms were isolated from 9 of 10 such eyes. Cake-frosting material was a positive prognostic sign. Fungal corneal stromal abscesses tended to be caused by yeast.

Clinical Implications

This information will aid practitioners in recognizing various forms of fungal keratitis and guide them when making therapeutic decisions and prognoses for affected horses. (J AM Med Assoc 1998;213:105-112)

Objective

To compare initial clinical appearances, healing mechanisms, risk factors, and outcomes of horses with fungal keratitis.

Design

Retrospective analysis.

Animals

52 horses (53 eyes) with fungal keratitis.

Procedure

Medical records and clinical photographs of eyes were reviewed. Keratomycoses were categorized on the basis of clinical appearance at initial examination and pattern of healing.

Results

Five distinct forms of mycotic keratitis were recognized. Of 53 affected eyes, 34 (64%) retained sight and had varying degrees of corneal scarring after treatment, 6 (11%) had a cosmetic appearance but were blind, and 13 (25%) were enucleated. Bacterial-like ulcers were the most frequent type and the most difficult for predicting outcome. Eyes affected by superficial fungal keratitis were likely to be chronically infected and to require debridement and extended treatment but usually healed with minimal scarring. Keratomycosis with a surrounding furrow resulted in a grave prognosis. Aspergillus organisms were isolated from 9 of 10 such eyes. Cake-frosting material was a positive prognostic sign. Fungal corneal stromal abscesses tended to be caused by yeast.

Clinical Implications

This information will aid practitioners in recognizing various forms of fungal keratitis and guide them when making therapeutic decisions and prognoses for affected horses. (J AM Med Assoc 1998;213:105-112)

All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 631 631 183
PDF Downloads 89 89 8
Advertisement