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Equine veterinary journal2024; doi: 10.1111/evj.14067

Comparing the effects of intraocular pressure and tear production measurements in horses in two different environments: Horse stable and medical barn.

Abstract: To date, there are no studies on the impact of two distinct environments-one familiar to the horse and another unfamiliar-on intraocular pressure (IOP) and tear production. Objective: To compare the measured IOP and tear production values in horses between a horse stable and a medical barn. Methods: Cross-over. Methods: Thirty healthy male Arabian horses, aged 6.88 ± 3.34 years were used. IOP and tear production measurements were assessed in both the horse stable and the medical barn, with a paired Student's t-test and Bland-Altman analysis conducted for comparison and agreement, respectively. Results: A significant increase in IOP was observed in the medical barn (34.2 ± 6.8 mmHg) compared with the horse stable (29.5 ± 7.2 mmHg, p = 0.02). However, no statistically significant difference in tear production was found between horse stable (22.1 ± 2.8 mm/min) and medical barn (23.6 ± 3.4 mm/min) (p = 0.09). The standard error of the slope was 0.36 for the IOP measured in the medical barn, indicating a difference of -4.7 mmHg compared with the IOP measured in the horse stable (p = 0.02). The bias was fitted to y = -7.9350 + 0.1003x. The standard error of the slope was 0.39 for the tear production measured in the medical barn, indicating a difference of -1.5 mm/min compared with the tear production measured in the horse stable (p = 0.09). The bias was fitted to y = 6.1530 + -0.3367x. Conclusions: The absence of horses with ocular disorders and an assessment of the potential impact of transportation. Conclusions: A notable increase in IOP was observed in the medical barn compared with the horse stable, while tear production exhibited no significant variance between the two environments. The Bland-Altman analysis highlighted a discrepancy in IOP measurements in the horse stable, emphasising the potential influence of the environment on ocular parameters in horses.
Publication Date: 2024-01-24 PubMed ID: 38268120DOI: 10.1111/evj.14067Google Scholar: Lookup
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Summary

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This research study compares intraocular pressure (IOP) and tear production in horses in two different environments: a horse stable and a medical barn. The results show that there is a significant increase in IOP in the medical barn compared to the horse stable, but no significant difference in tear production between the two environments.

Methods Used in the Study

  • The study was conducted on thirty healthy male Arabian horses who were approximately 6.88 years old. The researchers used a cross-over design for the study, meaning each horse was tested in both a familiar environment (the horse stable) and an unfamiliar one (the medical barn).
  • The IOP and tear production in the horses were then measured in both the horse stable and the medical barn.
  • The measurements taken were compared using a paired Student’s t-test and Bland-Altman analysis to determine the differences and agreements respectively.

Research Findings

  • The results showed a significant increase in IOP when the horses were in the medical barn compared to the horse stable. The average IOP in the medical barn was 34.2 mmHg, compared to 29.5 mmHg in the horse stable.
  • However, there was no statistically significant difference in tear production between the two environments. The average tear production rate in the horse stable was 22.1 mm/min, compared to 23.6 mm/min in the medical barn.
  • The standard error of the slope used to measure the IOP in the medical barn was 0.36, indicating a decrease by 4.7 mmHg compared with the IOP in the horse stable.
  • Similarly, the standard error of the slope used to measure tear production in the medical barn was 0.39, indicating a decrease of 1.5 mm/min compared with the tear production in the horse stable.

Conclusions

  • The study concluded that there is a notable increase in intraocular pressure in the medical barn compared to the horse stable. This suggests that the unfamiliar and potentially stressful environment of the medical barn could lead to a rise in horses’ intraocular pressure.
  • However, the tear production in the horses did not show a significant variance between the two environments.
  • The Bland-Altman analysis highlighted a discrepancy in IOP measurements in the horse stable. This embrace the potential influence of the environment on ocular parameters (such as IOP and tear production) in horses.

Cite This Article

APA
Cinar H, Yanmaz LE, Buyukkaraca N, Kaya Z, Kosuncu M. (2024). Comparing the effects of intraocular pressure and tear production measurements in horses in two different environments: Horse stable and medical barn. Equine Vet J. https://doi.org/10.1111/evj.14067

Publication

ISSN: 2042-3306
NlmUniqueID: 0173320
Country: United States
Language: English

Researcher Affiliations

Cinar, Harun
  • Department of Surgery, Faculty of Veterinary Medicine, Burdur Mehmet Akif Ersoy University, Burdur, Turkey.
Yanmaz, Latif Emrah
  • Department of Surgery, Faculty of Veterinary Medicine, Burdur Mehmet Akif Ersoy University, Burdur, Turkey.
Buyukkaraca, Nurefsan
  • Department of Surgery, Faculty of Veterinary Medicine, Burdur Mehmet Akif Ersoy University, Burdur, Turkey.
Kaya, Zehranur
  • Department of Surgery, Faculty of Veterinary Medicine, Burdur Mehmet Akif Ersoy University, Burdur, Turkey.
Kosuncu, Mirkan
  • Department of Surgery, Faculty of Veterinary Medicine, Burdur Mehmet Akif Ersoy University, Burdur, Turkey.

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