Glaucoma in dogs
Glaucoma is high pressure inside the eye. It's painful and can cause blindness quickly. Some breeds inherit a risk for it.
Last updated: October 2026 · 2 sources · see sources
Signs to watch for
- Red eye
- Cloudy or bluish cornea
- Enlarged eye
- Squinting
- Sudden vision loss
Trouble breathing, collapse, repeated vomiting, not peeing, or a seizure that lasts more than a few minutes needs a vet right away. See when to see a vet.
How vets diagnose it
Your vet measures eye pressure with a tonometer. An ophthalmologist may examine the drainage angle. [2]
How it's treated
Eye drops lower pressure in the short term. Laser or surgery may be needed, and painful blind eyes are often removed. [2]
Medicines your vet may mention: Dorzolamide. We don't list doses; your vet will decide what fits your pet.
What it costs to diagnose and manage
These are typical US ranges from the sources listed. Your pet's costs depend on how severe things are, the tests your vet recommends, your pet's size and where you live. Ask your vet for a written estimate.
Outlook
Glaucoma is often hard to control long-term. Fast treatment protects vision and comfort. [2]
Common questions
What is glaucoma in dogs?
Glaucoma is high pressure inside the eye. It's painful and can cause blindness quickly. Some breeds inherit a risk for it.
What are the signs of glaucoma?
Common signs include: red eye, cloudy or bluish cornea, enlarged eye, squinting, sudden vision loss.
How do vets diagnose glaucoma?
Your vet measures eye pressure with a tonometer. An ophthalmologist may examine the drainage angle.
How is glaucoma treated?
Eye drops lower pressure in the short term. Laser or surgery may be needed, and painful blind eyes are often removed.
How much does glaucoma cost to treat?
Diagnosis (exam and tests): $100–$300; Treatment: $50–$3,000. Costs vary with severity, tests, your pet's size and where you live.
Related
This page is general information for pet owners, not veterinary advice. Talk to your vet about your own pet.