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My cat has one dilated eye after shots. Is this a vet emergency?

Updated On September 23rd, 2025

Pet's info: Cat | Persian | Male | neutered | 6 years and 10 months old | 11 lbs

One of my cats eyes is dilated and the others is not. It happened yesterday after his rabies and feline shots

1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on January 20th, 2017

This is called anisocoria, and it is a medical emergency when it occurs suddenly. Munna could be experiencing an abnormal reaction to the vaccines if this happened after he received them yesterday. I would have him seen by a vet immediately.

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