Canine Glaucoma: Six Signs Your Dog Has It

Glaucoma is a condition in which the pressure within the eye is higher than normal due to blocked drainage ducts. Depending on the cause of increased intraocular pressure, your pet could have primary or secondary glaucoma.

  • Primary – A genetic disorder results in a hindered drainage duct within the eye. Certain breeds, including Cocker Spaniel, Basset Hound, Jack Russell Terrier and Shih Tzu, are more likely to develop glaucoma than others.
  • Secondary – Another condition, such as uveitis (chronic eye inflammation), cancer, cataracts or lens displacement, results in glaucoma.
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Six Signs Your Dog Could Have Glaucoma

With glaucoma, the pressure inside your dog’s eye increases which can cause pain and damage the optic nerve, resulting in vision loss. If your dog has glaucoma, you might notice some of the following behaviors.

  1. Eyes appear red or cloudy.
  2. Your dog squints or rubs eye with a paw or on other objects (glaucoma is painful).
  3. Your dog’s vision (decrease or loss) seems to have changed.
  4. Your dog becomes lethargic, irritated or less interested in play.
  5. One of your dog’s pupils is dilated more than the other.
  6. One of your pup’s eyes appears larger than the other (due to the internal pressure).

If you notice these symptoms or any change in your pet’s normal behavior, we strongly encourage you to schedule an appointment with a veterinarian.


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Relief for Your Pet with a Visit to the Vet

Our veterinarian uses a simple tonometry test to measure the intraocular pressure of your dog’s eye to determine whether or not glaucoma is present.

Glaucoma can be difficult to treat in dogs; an early diagnosis and prompt treatment are imperative to protecting your dog’s eyesight and relieving pain. Depending on the type of glaucoma and the progression of your pet’s condition, treatments vary and might include medications or surgery. If you notice a change in your pet’s normal behavior and suspect he or she might have glaucoma, schedule an appointment with our Pet Health veterinarian right away, as glaucoma progresses quickly and often leads to both pain and permanent vision loss.


– Missie A.

Pet Health Hospital is a life saver. My poor cat was attacked by another cat and developed a terrible abscess on her little head. Dr. Pizzillo was the attending veterinarian who treated my BabyGir!!. She was able to get the situation under control before it became more serious. Dr. Pizzillo is compassionate and caring. She has a very calming way about her and put my worries at ease. The entire staff is very professional and welcoming. I am going to recommend Pet Health Hospital to anyone needing an excellent veterinarian. Thank you to all of you!!!!

– Jennifer C.

Pet Health has been a wonderful health care service for our baby – Gracie.  She has a very serious health issue arise – and Dr. Lewis texted on a regular basis to check on her, to see how things were progressing and to see if we needed any help.   I am very grateful for their genuine love and concern for our dog.  thank you!

– Mee F.

Love this vet! Clean and high tech! The entire staff was friendly and so loving to my dog! First time here and I have already recommended this place to all my friends! The vet even followed up with us as she said she would on the urine test.

– Adrian W.

Great place. We’ve been to many vets throughout our dogs 7 years life span. This is the best place we’ve been to so far. Dr. Renee Lewis has a great presence and our dog was surprisingly extremely calm around her (he like every other dog, don’t like vets..).

This clinic is not very pushy wanting to do ‘extra’ work to create a larger bill. 

Dr. Lewis also showed that she really cared and took her time to get to know our dog, and explaining everything after the surgery. 

I’m done with Veterinaries that only cares about profit and rush through the consultation because they’re overbooked!

The staff here are also very friendly and helpful. They made us feel welcome!

I highly recommend this place!


– Sarah W.

Pet Health Animal Hospital is simply amazing. We found Dr. B and his team shortly after adopting our first dog. Being new to the area, we were concerned with finding the right vet that cared about our dog as much as we did. Lucky enough, we walked right into the perfect vet. From overnight stays to surgeries, Dr B and his team make us feel so comfortable, put any concern at ease, and are masters of communication. There is never a question left unanswered, or an update left undelivered. The whole team knows our dogs when we walk in, and our dogs are always excited and sprinting to get into the vet to see them. I tell people all the time that my favorite part of living in Las Vegas is Pet Health Animal Hospital!

– Andrew G.

The doctors and assistants do an amazing job here. I wasn’t sure what to do with my Sasha so I brought her in fearing the worst. Dr. Jessica Pizzillo was simply the best. She was able to remove the growth the same day and at a fraction of the cost of other estimates I had received, all while putting my Sasha through the least amount of trauma possible.

The front desk staff was also very kind and understanding when it comes to stressful situations like this. Stephanie and the rest of the staff made me feel comfortable and were very professional.

– Scott H.

Absolutely incredible vet! The level of service and attention is the best I’ve ever experienced anywhere.