Peer-reviewed veterinary case report
Eye pressure differences in healthy flat-faced and normal cats
By Kerdchuchuen, Kamolchanok et al.·Published in Veterinary ophthalmology·2021·Faculty of Veterinary Science·View original on PubMed →
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Original publication title: Comparison of intraocular pressure in healthy brachycephalic and nonbrachycephalic cats using the Icare® TONOVET Plus rebound tonometer.
- Species:
- cat
Plain-English summary
A study measured the eye pressure in healthy cats and found that brachycephalic cats (like Persians and Bulldogs) had lower eye pressure compared to non-brachycephalic cats. The average eye pressure in brachycephalic cats was about 15.8 mmHg, while it was around 18.8 mmHg in the other group. This information can help veterinarians understand what normal eye pressure looks like for different types of cats, which is important for detecting eye problems.
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Abstract
OBJECTIVE: To compare intraocular pressure using the Icare® TONOVET Plus rebound tonometer in healthy brachycephalic and nonbrachycephalic cats. ANIMALS STUDIED: Both eyes of 78 healthy cats were investigated in this study. Cats were divided into two groups: brachycephalic (n = 39) and nonbrachycephalic (n = 39). PROCEDURES: Nose position and muzzle ratio were photographically recorded and analyzed. Physical and ophthalmic examinations were performed. Intraocular pressure was measured using the Icare® TONOVET Plus rebound tonometry instrument. Quantitative mean values were statistically compared using an unpaired t-test at a significance level of p < .05. RESULTS: Mean values of the nose position and muzzle ratio were significantly lower in the brachycephalic group (20.14 ± 5.43%, 9.61 ± 3.29%) compared with the nonbrachycephalic group (29.21 ± 4.30%, 13.97 ± 6.01%). The mean intraocular pressure for brachycephalic cats (15.76 ± 0.50 mmHg) was significantly lower (p < .001) than for nonbrachycephalic cats (18.77 ± 0.49 mmHg). CONCLUSIONS: Intraocular pressure was significantly lower in brachycephalic cats using the Icare® TONOVET Plus rebound tonometer. Intraocular pressure values obtained in this study could be used as a guideline for measurements obtained using this tonometry device in healthy brachycephalic and nonbrachycephalic cats.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/34487613/