Related Experiment Video
Updated: Jul 16, 2026
10:10
Full-Circle Cauterization of Limbal Vascular Plexus for Surgically Induced Glaucoma in Rodents
Published on: February 15, 2022
Clinical Impact of Measurement Timing on Intraocular Pressure in Dogs
1Laboratory of Veterinary Ophthalmology, Department of Veterinary Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea.
Veterinary Ophthalmology
|July 15, 2026
Summary
Intraocular pressure (IOP) in dogs significantly decreases within minutes of measurement. Standardizing IOP measurement timing is crucial for accurate canine ophthalmic assessments.
Area of Science:
- Veterinary Ophthalmology
- Ophthalmic Diagnostics
Background:
- Intraocular pressure (IOP) measurement is vital for diagnosing and monitoring ocular conditions in dogs.
- Variability in IOP readings can complicate clinical interpretation and treatment decisions.
Purpose of the Study:
- To investigate if intraocular pressure (IOP) measurements in dogs change based on the timing of assessment after patient presentation.
- To determine if these IOP variations impact clinical interpretations.
Main Methods:
- The study included 88 eyes from 44 dogs undergoing their first ophthalmologic examination.
- Intraocular pressure was measured immediately upon presentation (IOP_0min) and again after a 5-minute interval including other tests (IOP_5min).
- Data were analyzed considering sex, body weight, age, and visual status.
Main Results:
- Mean IOP decreased significantly from 16.55 mmHg at IOP_0min to 13.06 mmHg at IOP_5min (p < 0.001).
- This IOP reduction was consistent across all subgroups, including variations in sex, weight, age, and visual status.
- Females and heavier dogs (>5kg) exhibited greater IOP reductions than males and lighter dogs (≤5kg).
Conclusions:
- Intraocular pressure in dogs shows a statistically significant decrease within minutes of presentation.
- Standardizing the timing of IOP measurements is essential for accurate and reproducible canine ocular assessments.
- Consistent measurement protocols ensure precise evaluation of a dog's ophthalmic health.
Related Concept Videos
01:27Open Angle Glaucoma: Treatment
In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
Drugs such as carbonic anhydrase inhibitors, α2- and...
01:25Glaucoma: Overview
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...