ArticleVeterinary medicine and science2026
Relationship Between Intraocular Pressure and Carbonic Anhydrase Enzyme Activity in Cattle: Implications for Veterinary Ophthalmology.
Article in Veterinary medicine and science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors.
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Abstract
This study evaluated the relationship between intraocular pressure (IOP) and carbonic anhydrase (CA) activity in healthy pregnant and non-pregnant Brown Swiss cows. Fourteen cows (seven pregnant, seven non-pregnant; average age 4.5 ± 0.3 years; body weight 500 ± 50 kg) were included. After clinical and ophthalmologic examinations, IOP was measured in both eyes using a rebound tonometer on 10 consecutive mornings (9-12 AM). Blood samples were collected for the determination of plasma CA activity. Data were analysed with parametric and non-parametric tests, and right-left eye agreement was assessed via Bland-Altman analysis. Pregnant cows showed significantly lower mean IOP (22.19 ± 1.43 mmHg) than non-pregnant cows (24.50 ± 1.60 mmHg; p < 0.001), with no significant difference between the eye sides. Plasma CA activity did not differ between groups, but IOP changes correlated positively with CA level changes in pregnant (R
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