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My senior dog's eye is red and his third eyelid is showing. What's wrong?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | neutered

My dog is 16years old. A few days ago we noticed his right eye was red. It looks as if the 3rd eyelid has come up over his eye. There is no discharge and it doesn't seem to be bothering him?

1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on April 16th, 2017

Por Marshall! He could have an eye infection, may have allergies, or could have injured his eye. The eye is such an important and delicate structure that any problem with it should be considered an emergency. That's because leaving it untreated can lead to vision loss. He needs to have his eye seen and examined now so it can be treated. 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.

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