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Investigation of ocular surface parameters in dogs with different cephalic conformations using veterinary ocular surface analyzer (OSA-VET).
Li, Yan-Hui; Martins, Bianca; Lin, Chung-Tien.
Afiliación
  • Li YH; Institute of Veterinary Clinical Sciences, School of Veterinary Medicine, National Taiwan University, Taipei, Taiwan.
  • Martins B; Department of Ophthalmology, National Taiwan University Veterinary Hospital, Taipei, Taiwan.
  • Lin CT; Department of Surgical and Radiological Science, School of Veterinary Medicine, University of California, Davis, California, USA.
Vet Ophthalmol ; 2024 Jul 16.
Article en En | MEDLINE | ID: mdl-39013802
ABSTRACT

OBJECTIVE:

To compare ocular surface parameters in dogs with different cephalic conformations and evaluate correlations among tests. ANIMALS STUDIED Sixty-eight privately owned dogs. PROCEDURES The study categorized canine eyes into three groups based on the craniofacial ratio (CFR) brachycephaly (≤0.52), mesocephaly (>0.52 to <0.67), and dolichocephaly (≥0.67). All eyes were examined using an ocular surface analyzer (OSA-VET) to determine lipid layer thickness (LLT) of the tear film, tear meniscus height (TMH), non-invasive tear breakup time (NIBUT), and meibomian gland loss rate of the lower eyelids (MGLRL). Schirmer tear test 1 (STT-1) and tear film breakup time (TBUT) were also performed. Statistical analyses involved one-way ANOVA, Kruskal-Wallis H test, post hoc Holm-Sidak test, and Pearson correlation coefficient.

RESULTS:

While STT-1 showed no significant difference among dog groups, brachycephalic dogs had significantly lower values in TBUT, NIBUT, and LLT, and a higher TMH, compared to mesocephalic and dolichocephalic dogs. Additionally, brachycephalic dogs exhibited a significantly higher MGLRL than dolichocephalic dogs. Correlations among tests were generally weak to moderate (r < .6) except for a strong correlation between CFR and LLT (r = .641, p < .001), and between TBUT and NIBUT (r = .899, p < .001).

CONCLUSIONS:

Brachycephalic morphology predisposes dogs to a significantly thinner lipid layer and diminished tear film stability, likely due to factors such as impaired meibomian gland function and increased ocular exposure compared to other cephalic conformations, thereby increasing their risk of keratoconjunctivitis sicca (KCS). OSA-VET shows a valuable tool to provide more comprehensive and precise diagnosis for canine ocular surface disorders.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Vet Ophthalmol Asunto de la revista: MEDICINA VETERINARIA / OFTALMOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Taiwán Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Vet Ophthalmol Asunto de la revista: MEDICINA VETERINARIA / OFTALMOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Taiwán Pais de publicación: Reino Unido