Caspian Journal of Veterinary Sciences

Caspian Journal of Veterinary Sciences

Physical examination stress: an overlooked factor for increasing intraocular pressure in cats

Document Type : Original Article

Authors
Reza Azargoun 1
Mohammad-Javad Qolizade 2
Farzin Abbasi 2
Maryam Mohammadzadeh 2
1 Department of Internal Medicine and Clinical Pathology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
2 Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
10.22034/cjvs.2024.198813
Abstract
Intraocular pressure (IOP) is essential for eyeball health, and abnormal values may cause detrimental effects on ocular structures. The reliable measurement of IOP provides high diagnostic value, as each mmHg increase in IOP is associated with a 10% greater risk of glaucoma development and progression. This study evaluated the effects of physical examination stress on short-term variations in IOP in 42 healthy intact cats. IOP was measured with a Schiotz tonometer before and after physical pre-vaccination examinations. Physical examination stress significantly increased IOP in the left and right eyes of male and female cats. Also, in both measurement steps, the mean IOP in male cats was significantly higher than in females (p < 0.05). Based on these results, measuring IOP at the beginning of physical examinations is recommended, and it is necessary to consider the effects of stress in the interpretation of tonometry results.
Keywords
Feline glaucoma
Schiotz tonometer
White-coat effect
Subjects
Brody, S; Erb, C; Veit, R and Rau, H (1999). Intraocular pressure changes: the influence of psychological stress and the Valsalva maneuver. Biol. Psychol., 51: 43-57.
Finkler, H and Terkel, J (2010). Cortisol levels and aggression in neutered and intact free-roaming female cats living in urban social groups. Physiol. Behav., 99: 343-347.
Gillmann, K; Hoskens K and Mansouri, K (2019). Acute emotional stress as a trigger for intraocular pressure elevation in glaucoma. BMC Ophthalmol., 19: 69.
Jiménez, R and Vera, J (2018). Effect of examination stress on intraocular pressure in university students. Appl. Ergon., 67: 252-258.
Karn-Buehler, J and Kuhne, F (2022). Perception of stress in cats by German cat owners and influencing factors regarding veterinary care. J. Feline Med. Surg., 24: 700-708.
Koo, S and Carr, A (2022). Comparison of home blood pressure and office blood pressure measurement in dogs and cats. Can. J. Vet. Res., 86: 203-208.
McLellan, G and Miller, P (2011). Feline glaucoma – A comprehensive review. Vet. Ophthal., 14: 15–29.
Miller, PE (1992). Comparison of the human and canine Schiotz tonometry conversion tables in clinically normal cats. J. Am. Vet. Med. Assoc., 201: 1017-1020.
Miyazaki, Y; Matsuo, T and Kurabayashi, Y (2000). Immobilization stress induces elevation of intraocular pressure in rabbits. Ophthal. Res., 32: 270-277.
Nicou, C; Pillai, A and Passaglia, C (2021). Effects of acute stress, general anesthetics, tonometry, and temperature on intraocular pressure in rats. Exp. Eye Res., 210: 108727.
Ofri, R; Horowitz, I; Jacobson, S and Kass, P (1998). The effects of anesthesia and gender on intraocular pressure in lions (Panthera leo). J. Zoo Wild Med., 29: 307-310.
Turner, D; Miranda, M; Morris, J; Girkin, C and Crawford Downs, J (2019). Acute Stress increases intraocular pressure in nonhuman primates. Ophthal. Glaucoma., 2: 210–214.
Whitworth, J; Williamson, P; Mangos, G and Kelly, J (2005). Cardiovascular consequences of cortisol excess. Vasc. Health Risk Manag., 1: 291-299.
WrzeĊ›niewska, K; Madany, J and Winiarczyk, D (2018). Comparison of intraocular pressure measurement with schiotz tonometer and tono-pen vet tonometer in healthy
dogs. J. Vet. Res., 62: 243–247.
Caspian Journal of Veterinary Sciences
Volume 1, Issue 1
June 2024
Pages 5-8

  • Receive Date 08 October 2022
  • Revise Date 31 January 2023
  • Accept Date 10 April 2023