Petco Text Logo
Petco Pet Logo

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.

3 Answers

Most Helpful Answer

Image profile

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!

Vote icon

1Pet Parents found this answer helpful

Related Answers from Veterinarians

  • Image profile

    Answered By Jessica Desrosiers

    Veterinary Technician

    Published on March 27th, 2017

    If you can get to another vet more quickly, or even an emergency vet that would be best. Clouding of the eye may be due to an infection, illness or injury and waiting to have it treated could lead to a worsening of symptoms or even loss of the eye. Attempting to treat at home may worsen the problem or cause excessive irritation. It is best to seek veterinary care ASAP.

    Vote icon

    2Pet Parents found this answer helpful

  • Image profile

    Answered By Dr. Melanie, BVSc MS

    Veterinarian

    Published on September 5th, 2020

    Poor Milo. It sounds like his eye is quite painful if he screams when you touch it. Any eye problem needs to be checked out by a vet promptly as leaving it untreated can lead to vision loss. I'd take him into a vet immediately to get his eye treated. Best of luck.

    Vote icon

    1Pet Parents found this answer helpful

See More Answers
image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Sponsored