Equine eosinophilic keratoconjunctivitis in California: retrospective study of 47 eyes from 29 cases (1993-2017).
Vet Ophthalmol
; 22(4): 510-519, 2019 Jul.
Article
in En
| MEDLINE
| ID: mdl-30706617
ABSTRACT
OBJECTIVE:
(a) To evaluate the epidemiology of equine eosinophilic keratoconjunctivitis (EK) in the western United States, (b) to ascertain the efficacy of keratectomy and diamond burr debridement vs medical management alone, (c) to determine the efficacy of various medical therapies, and (d) to further characterize the histopathologic findings of the disease in horses. ANIMALS STUDIED Twenty-nine horses (47 eyes) diagnosed with EK from 1993 to 2017. PROCEDURE Retrospective medical record review; owner questionnaire.RESULTS:
Average age of presentation was 11 ± 4 years. Warmbloods were significantly overrepresented (P = 0.024). Twenty horses were treated with medical therapy alone, five were treated with superficial lamellar keratectomy, and four were treated with diamond burr debridement. Follow-up data were available for 38 eyes of 23 horses. Median time to resolution for horses treated with either superficial keratectomy or diamond burr debridement (62 days) was not statistically significantly different from those that underwent medical therapy alone (46 days; P = 0.33). Eyes treated with topical steroids had a statistically significant longer median time to resolution (61 days) compared to those that did not receive topical steroid (44 days; P = 0.023). Common histopathologic findings in keratectomy samples included the presence of eosinophils, vascularization, and an eosinophilic membrane spanning areas of ulceration.CONCLUSION:
In this population, time to EK resolution was similar for horses treated with medical and surgical management. The use of topical steroids was associated with a prolonged time to resolution. Keratectomy samples from horses with EK had similar findings to those reported in other species.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Eosinophilia
/
Horse Diseases
/
Keratoconjunctivitis
Type of study:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limits:
Animals
Country/Region as subject:
America do norte
Language:
En
Journal:
Vet Ophthalmol
Journal subject:
MEDICINA VETERINARIA
/
OFTALMOLOGIA
Year:
2019
Document type:
Article