How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Dr.Fiona Your Own Question
Dr.Fiona, Veterinarian
Category: Pet
Satisfied Customers: 6273
Experience:  16 years experience as a companion animal veterinarian in British Columbia, California and Ontario
Type Your Pet Question Here...
Dr.Fiona is online now
A new question is answered every 9 seconds

My dog is squinting his right eye and closing it when the ...

Resolved Question:

My dog is squinting his right eye and closing it when the left eye will stay open. His eye looks real glossy but there is no drainage. What could it be?
Submitted: 9 years ago.
Category: Pet
Expert:  Dr.Fiona replied 9 years ago.

Hi there!

Welcome to Just Answer! I would like to help you and your Doxie with this question, but need a bit more information in order to better help you.

When did this start?

Are the pupils the same size, or is the pupil in the right eye smaller? You will need to be indoors to check this.


Customer: replied 9 years ago.
Reply to Dr.Fiona's Post: Yes they are the same size
Expert:  Dr.Fiona replied 9 years ago.
For how long has your dog been squinting on the right eye?
Customer: replied 9 years ago.
Reply to Dr.Fiona's Post: Since this afternoon. I also wanted to mention his right sclera is bloodshot.
Expert:  Dr.Fiona replied 9 years ago.
A-HA! Ok, that has been very helpful! I am going to go work on your answer and will be back in a few minutes...
Customer: replied 9 years ago.
Expert:  Dr.Fiona replied 9 years ago.

Hi again ccanavan,

The most likely thing that is causing your dog to hold his eye closed would be a corneal ulcer. In a situation where a dog won't open his eye, or is holding it partially closed, he needs to see a vet promptly (today or tomorrow at the latest).

A corneal ulcer can be caused by a scratch on the eye - either in a fight with a cat, or on a twig, or on a sharp object in the home. Corneal ulcers are serious and need prompt treatment. Also, they are very painful. Just think how uncomfortable your eye is with an eyelash in it, and then imagine what it would be like with a cut on it!

When I have an animal with this problem come into the clinic, I do a full ophthalmologic exam. I might put local anesthetic in the eye to make it painfree so I could open it to examine it closely. After an initial look, I would stain the eye with fluorescein dye which sticks to any parts of the eye that are damaged. This dye glows under a black light. Thus, you can easily see where the damage is.

If there was indeed a corneal ulcer, I would start the animal on antibiotic drops or ointment. If there was a lot of inflammation (uveitis) causing the pupil to stay small, then I would also start an ointment to dilate the pupil. I would also suggest the patient wore a cone on his head until the eye is healed so he could do no further damage by rubbing (definitely he will think this is adding insult to injury!). I would have my patient come back in a week to check that things had healed up properly.

I will include a link with more information:

In short, I think your boy has a corneal ulcer. It is urgent that he see a veterinarian promptly!

If you absolutely cannot get to a vet tonight, you could get over the counter BNP ointment (ask the pharmacist for a triple antibiotic ophthalmic ointment if you can't see it. Here's a link: ) and start it in his eye for tonight. Use 1/4' strip in the affected eye 4 times daily.

Good luck with him!

If this has been helpful, please hit the "Accept" button and leave feedback. If you need more information, just click on reply and I will still be here to provide it.



Dr.Fiona and other Pet Specialists are ready to help you