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Owner Obtained Intraocular Pressure Measurements in Canine Primary Angle Closure Glaucoma: A Pilot Study in 14 Dogs
Hans D Westermeyer1, Jacklyn H Salmon1
1Department of Clinical Sciences, North Carolina State University, College of Veterinary Medicine, Raleigh, North Carolina, USA.
Veterinary Ophthalmology
|February 5, 2026
Summary
Owner-obtained intraocular pressure (IOP) measurements in dogs at home can help manage primary angle closure glaucoma (PACG). These at-home IOP readings provide valuable data for monitoring canine glaucoma.
Area of Science:
- Veterinary Ophthalmology
- Canine Health
- Glaucoma Research
Background:
- Primary angle closure glaucoma (PACG) is a significant concern in predisposed dog breeds.
- Monitoring intraocular pressure (IOP) is crucial for managing canine glaucoma.
- Owner-administered IOP measurements offer a novel approach to disease surveillance.
Purpose of the Study:
- To evaluate the clinical utility of owner-obtained intraocular pressure (IOP) measurements in dogs at risk for primary angle closure glaucoma (PACG).
- To assess the feasibility of home-based IOP monitoring for early detection and management of canine PACG.
Main Methods:
- Owners of 14 dogs with PACG-predisposed eyes performed IOP measurements using a TonoVet Plus.
- IOP monitoring continued from diagnosis until clinical PACG onset or loss to follow-up.
- Data analysis focused on IOP trends and correlation with glaucoma development.
Main Results:
- Owner IOP measurements were successfully obtained in 14 dogs.
- Nine dogs developed overt glaucoma, often marked by sudden IOP spikes exceeding 50 mmHg.
- Sudden IOP elevations were not consistently preceded by gradual increases, highlighting the unpredictable nature of glaucoma onset.
- Latanoprost treatment in dogs with overt glaucoma did not prevent sporadic IOP spikes.
Conclusions:
- At-home, owner-obtained IOP measurements can yield valuable data for managing canine PACG.
- This method may aid in timely intervention and improved outcomes for dogs with glaucoma.
- Further research can explore the integration of owner-based IOP monitoring into routine veterinary care for glaucoma-prone breeds.
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