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My dog has a red blister on his eye. What is it and what should I do?

Updated On September 23rd, 2025

Pet's info: Dog | Shih Tzu | Male | neutered | 8 years and 6 months old | 15 lbs

My 8 yo Shi-tzu has what looks like a blood blister on his eye. It's reddish/brown in color. It doesn't appear to affect his sight. I noticed it after cleaning some eye much off his eyes. So they were draining more than usual. My vet is booked for the next 7 days so I can't get in to be seen soon. What can I do for him in the meantime and what is it?

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1 Answer

Most Helpful Answer

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Answered By Amy S. Eutsey, DVM

Veterinarian

Published on June 12th, 2017

This is a very abnormal looking eye and it appears that your dog has some serious issues with the cornea. The cornea is very cloudy and hazy and the pink lesion looks like a large ulcer on the cornea. This eye is likely chronically dry and lacking in tear production. This eye looks like it is in imminent danger of rupturing. I would recommend that you take your pet to the closest emergency clinic if you are unable to get help from a regular daytime vet right away. Your pet should be seen immediately and it is not a good idea to wait for 7 days. Your pet will likely need multiple prescription eye medications and possibly surgery in order to repair the defect. Please do not try to treat this without a proper diagnosis and proper medication.

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