Corneal sensitivity in healthy bovine calves.
Vet Ophthalmol
; 17(4): 305-8, 2014 Jul.
Article
em En
| MEDLINE
| ID: mdl-24674385
ABSTRACT
OBJECTIVE:
To evaluate corneal sensitivity as measured by the corneal touch threshold in healthy bovine calves. ANIMALS STUDIED Twelve clinically normal male calves with predominantly Holstein genetics and a median age of 76.5 days (range, 67-92 days). PROCEDURES Corneal touch threshold (CTT) of the central cornea was measured in both eyes of each calf using a Cochet-Bonnet aesthesiometer.RESULTS:
The mean ± standard deviation corneal touch threshold of all eyes was 1.33 ± 1.1 g/mm(2) (range, 0.62-66.15 g/mm(2) ), corresponding to a filament length of 34.56 ± 8.02 mm (range, 14-47.5 mm). There was no significant difference between fellow eyes.CONCLUSIONS:
Cochet-Bonnet aesthesiometry was well tolerated in all 12 calves using a modified head restraint. Calves in this study may have a relatively sensitive central cornea compared to adult cattle and some other species; however, wide variation among individuals and eyes may be possible. Studies utilizing larger calf populations are necessary to establish reference ranges.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Tato
/
Bovinos
/
Córnea
Tipo de estudo:
Diagnostic_studies
Limite:
Animals
Idioma:
En
Revista:
Vet Ophthalmol
Assunto da revista:
MEDICINA VETERINARIA
/
OFTALMOLOGIA
Ano de publicação:
2014
Tipo de documento:
Article
País de afiliação:
Estados Unidos