The effect on intraocular pressure (IOP) from dogs pulling against a collar or a harness was evaluated in 51 eyes of 26 dogs. The force each dog generated while pulling against a collar or a harness was measured. Intraocular pressure measurements were obtained during application of corresponding pressures via collars or harnesses. Intraocular pressure increased significantly from baseline when pressure was applied via a collar but not via a harness. Based on the results of the study, dogs with weak or thin corneas, glaucoma, or conditions for which an increase in IOP could be harmful should wear a harness instead of a collar, especially during exercise or activity.
Effects of the Application of Neck Pressure by a Collar or Harness on Intraocular Pressure in Dogs
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Amy M. Pauli, Ellison Bentley, Kathryn A. Diehl, Paul E. Miller; Effects of the Application of Neck Pressure by a Collar or Harness on Intraocular Pressure in Dogs. J Am Anim Hosp Assoc 1 May 2006; 42 (3): 207–211. doi: https://doi.org/10.5326/0420207
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