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My puppy's eye is cloudy and one pupil dilated after injury. What now?

Updated On September 23rd, 2025

Pet's info: Dog | Chesapeake Bay Retriever | Male | unneutered | 4 months and 11 days old | 35 lbs

My puppy was playing with my kids and got hit in the eye or eye area with his toy (a rope). He yelped, but since seems ok, except one eye appears to be cloudy, and only one pupil dilated.

2 Answers

Most Helpful Answer

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Answered By Jennifer Summerfield, DVM CPDT-KA

Veterinarian, Certified Dog Trainer

Published on December 12th, 2016

Poor pup! Cloudiness and anisocoria (the medical term for unequal pupils) are signs of a significant eye injury. It would be best to have Massimo examined by an emergency vet tonight if possible. If this isn't an option for you, he should be seen by your regular vet first thing in the morning. Prompt assessment and treatment is important in cases like this because the risk of permanent damage or vision loss increases the longer he goes without treatment.

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    Answered By Dr. Melanie, BVSc MS

    Veterinarian

    Published on

    Ouch, poor Massimo! When one eye is dilated, that is called anisocoria. It can occur when there is trauma to the eye, and a sudden appearance of it requires an immediate trip to the vet. A cloudy eye can also be seen with anisocoria. Any eye condition is considered an emergency, as leaving them untreated can lead to vision loss. I would take Massimo into an ER vet now, or find a vet on call to see him right away, as he needs his eye treated immediately.

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