Validation of the Reichert® Tono-Vera® Vet rebound tonometer in normal ex vivo canine eyes.
Vet Ophthalmol
; 27(3): 290-293, 2024 May.
Article
em En
| MEDLINE
| ID: mdl-38576120
ABSTRACT
OBJECTIVE:
To determine the accuracy of the Reichert® Tono-Vera® Vet rebound tonometer for canine intraocular pressure (IOP) measurement. ANIMALS STUDIED Five normal canine ex vivo globes. PROCEDURES The anterior chambers of five freshly enucleated normal canine eyes were cannulated and connected to a reservoir of Plasma-Lyte A and a manometer. Starting at a manometric IOP of 5 mmHg, the pressure was progressively increased to 80 mmHg by raising the reservoir. Triplicate IOP measurements were taken with the Tono-Vera® Vet from the central cornea using the dog setting and compared to the manometric pressure by linear regression analysis and Bland-Altman plots.RESULTS:
There was a strong positive linear regression trend when comparing central corneal Tono-Vera® Vet IOPs to manometric pressures (r2 = .99) with solid agreement between the two methods. Compared to manometric IOPs, the Tono-Vera® Vet underestimated IOPs at higher pressures ≥70 mmHg.CONCLUSIONS:
Measurement of IOPs from the central cornea with the Tono-Vera® Vet provided accurate results over a large range in normal canine globes compared to direct manometry. The mild to moderate underestimation of IOPs at high pressures was not considered clinically relevant.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Tonometria Ocular
/
Pressão Intraocular
Limite:
Animals
Idioma:
En
Revista:
Vet Ophthalmol
Assunto da revista:
MEDICINA VETERINARIA
/
OFTALMOLOGIA
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
Estados Unidos