Cataracts in dogs
A cataract is a cloudiness in the lens of the eye that blocks vision. Cataracts can be inherited, age-related or caused by diabetes.
Last updated: October 2026 · 2 sources · see sources
Signs to watch for
- Cloudy, bluish-white pupil
- Bumping into things
- Trouble in dim light
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 examines the eye, and an ophthalmologist can confirm the cataract and test the retina before surgery. [2]
How it's treated
Surgery (phacoemulsification) is the only way to remove a cataract. Eye drops help control inflammation if surgery isn't done. [2]
Medicines your vet may mention: Prednisone & Prednisolone. We don't list doses; your vet will decide what fits your pet.
What it costs to diagnose and manage
| Item | Typical US price | Src |
|---|---|---|
| Diagnosis (exam and tests) | $100–$300 | [1] |
| Treatment, per eye | $2,500–$4,500 | [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
Most dogs regain useful vision after successful surgery. [2]
Common questions
What is cataracts in dogs?
A cataract is a cloudiness in the lens of the eye that blocks vision. Cataracts can be inherited, age-related or caused by diabetes.
What are the signs of cataracts?
Common signs include: cloudy, bluish-white pupil, bumping into things, trouble in dim light.
How do vets diagnose cataracts?
Your vet examines the eye, and an ophthalmologist can confirm the cataract and test the retina before surgery.
How is cataracts treated?
Surgery (phacoemulsification) is the only way to remove a cataract. Eye drops help control inflammation if surgery isn't done.
How much does cataracts cost to treat?
Diagnosis (exam and tests): $100–$300; Treatment, per eye: $2,500–$4,500. 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.