Pet Tonometry

Detect glaucoma early with pet tonometry at Erin Mills Pet Hospital, a safe and painless form of testing designed to protect your pet’s vision.

Pet Tonometry in Mississauga, ON

If you notice eye issues like redness or squinting, it’s critical that you diagnose the issue before it can develop further. Contact Erin Mills Pet Hospital in Mississauga for expert pet glaucoma care today.

Detecting and Treating Glaucoma

At Erin Mills Pet Hospital, we strongly emphasize early care when it comes to your pet’s eyes and any issues related to intraocular pressure (pressure within the eye). Using a device called a tonometer, we can safely and painlessly measure your pet’s eye pressure without the need for sedation.

Glaucoma, if left untreated, can lead to permanent vision loss or even blindness within hours to days. Pets with a history of eye injuries or those belonging to breeds prone to glaucoma should have their eye pressure monitored regularly. This allows us to catch potential issues early and begin treatment promptly, preventing irreversible damage. Contact us to determine if your pet may be at higher risk for glaucoma.

vet examines a dog's eye

Recognizing Symptoms of Eye Problems

If you observe any concerning symptoms in your pet’s eyes, contact Erin Mills Pet Hospital immediately. Warning signs include dilated pupils, clouding of the cornea, redness or bloodshot appearance, one eye protruding or seeming larger than the other, squinting, or excessive tearing.

Because glaucoma is painful, pets may react by rubbing or pawing at their eyes or rubbing their heads against furniture or the floor more frequently. Early intervention is crucial for preserving your pet’s vision and comfort, so don’t hesitate to seek assistance if these signs appear.

Frequently Asked Questions About Pet Tonometry & Glaucoma Testing

What is pet tonometry and why does my dog or cat need it?
Tonometry is a quick, diagnostic test used to measure the fluid pressure inside your pet’s eyes (known as intraocular pressure, or IOP). Measuring this internal pressure is the only definitive way to detect glaucoma—a painful condition caused by high fluid backup that can lead to permanent blindness if not treated immediately.
Does eye pressure testing hurt, and will my pet need to be sedated?
Not at all. At Erin Mills Pet Hospital, we use an advanced, specialized device called a rebound tonometer. This pen-sized tool features a tiny, lightweight probe that makes a microscopic, fraction-of-a-second contact with the surface of the cornea. It is so fast and completely painless that pets don’t even blink, meaning no numbing drops or sedatives are required.
What are the early warning signs that my pet might be developing glaucoma?
Glaucoma can progress rapidly, sometimes causing irreversible damage within 24 hours. Red flags include a cloudy or bluish tint over the eye, dilated pupils that don’t react to light, severe eye redness or bloodshot lines, excessive tearing, or squinting. Because it is highly painful, you might also notice your pet rubbing their face on things or acting unusually withdrawn.
Which dog and cat breeds are most at risk for developing glaucoma?
While any animal can be affected due to an eye injury or infection, primary glaucoma is genetic. Highly susceptible dog breeds include Cocker Spaniels, Boston Terriers, Great Danes, Basset Hounds, Poodles, and Siberian Huskies. In cats, Siamese and Persian breeds carry a higher risk. If your pet belongs to an at-risk breed, we recommend checking their baseline pressures at their annual exam.
Can pet glaucoma be cured, or will my pet lose their vision?
There is no permanent cure for genetic glaucoma, but it can be successfully managed if caught early. By diagnosing high eye pressure promptly using tonometry, our Mississauga veterinary team can prescribe specialized topical eye drops and medications to reduce fluid production and improve drainage. This protective therapy preserves your pet’s vision and keeps them entirely pain-free.