Corneal ulcers in dogs
A corneal ulcer is a wound on the clear surface of the eye. Scratches, eyelid problems and dry eye are common causes.
Last updated: October 2026 · 2 sources · see sources
Signs to watch for
- Squinting
- Tearing
- Redness
- Pawing at the eye
- Cloudiness
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 uses fluorescein dye to show the ulcer and checks its depth. [2]
How it's treated
Most ulcers heal with antibiotic drops and pain control. Deep or non-healing ulcers may need special procedures or surgery. [2]
What it costs to diagnose and manage
| Item | Typical US price | Src |
|---|---|---|
| Diagnosis (exam and tests) | $100–$300 | [1] |
| Treatment | $300–$3,000 | [1] |
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
Simple ulcers heal quickly; deep ones need close follow-up. [2]
Common questions
What is corneal ulcers in dogs?
A corneal ulcer is a wound on the clear surface of the eye. Scratches, eyelid problems and dry eye are common causes.
What are the signs of corneal ulcers?
Common signs include: squinting, tearing, redness, pawing at the eye, cloudiness.
How do vets diagnose corneal ulcers?
Your vet uses fluorescein dye to show the ulcer and checks its depth.
How is corneal ulcers treated?
Most ulcers heal with antibiotic drops and pain control. Deep or non-healing ulcers may need special procedures or surgery.
How much does corneal ulcers cost to treat?
Diagnosis (exam and tests): $100–$300; Treatment: $300–$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.