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My dog's eyes became cloudy overnight and he can't see. What's wrong?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Large (61lb +) | Male | neutered | 4 years old | 119 lbs

My dog's eyes have become very cloudy overnight, he tends to squint a lot or keep his eyes closed and has a slower reaction to visual things.

1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on August 28th, 2018

Poor Hank! It could be he has a serious eye infection leading to this cloudiness, squinting, and trouble seeing. He could have also injured his eye. It's very concerning this just happened overnight, and any problem with the eye should be considered an emergency. That's because leaving it untreated can lead to vision loss. Please take him into an ER vet clinic; if there isn't one in your area, there will be a vet on call for emergencies. The information to reach that vet is found on a clinic's answering machine or website. Best of luck, I hope this helps!

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