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My dog's eyes are red, cloudy, and sensitive to light. What's wrong?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | neutered

Over night my dogs eyes became red and a little cloudy and is sensitive to light.

1 Answer

Most Helpful Answer

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Answered By Mara Howard, DVM

Veterinarian

Published on November 22nd, 2017

Thanks for using Petco Pet Education Center, formerly Petcoach! I'm sorry to hear Linus is having eye issues. Changes like you are describing in the eyes can have a variety of causes, including glaucoma (increased eye pressure), an infection, a scratch on the eye, or another underlying issue. As eye issues can progress quickly and cause irreversible damage if not properly addressed, I would recommend Linus be evaluated by his regular veterinarian, have any necessary testing done (eye stain, tear production, pressure check) and start any treatment if needed. Good luck!

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