Is your dog experiencing eye redness, cloudiness or dilated pupils? Is he squinting a lot or tearing up? Could it be glaucoma? Let’s learn the basics about glaucoma in dogs — including the symptoms, different types, diagnosis and treatment.
First, what is glaucoma in dogs?
Glaucoma in dogs is a serious eye disorder. Left untreated, glaucoma in dogs can lead to loss of vision and might require removal of the affected eye itself. Glaucoma means elevated pressure in the eye. If the fluid within the eye doesn’t drain the way it should, it causes pressure to build up, increasing pressure on the optic nerve. Eventually, the optic nerve becomes damaged, which may lead to vision loss.
What are the symptoms of glaucoma in dogs?
Glaucoma in dogs is not always easy to recognize, especially early on. You might notice eye redness or cloudiness, a dilated pupil, or excessive squinting or tearing. Advanced glaucoma in dogs is often more obvious as the affected eye starts to bulge.
“Glaucoma is very painful and often owners will notice squinting, but not always,” explains Stephanie Beaumont, DVM, Dipl. ACVO, a board-certified veterinary Ophthalmologist at Animal Eye Specialists in Richardson, Texas. “I often see dogs with glaucoma that do not squint the eye or show any signs of pain. Many pets with pain from glaucoma tend to hide or sleep more rather than show outward signs of eye pain.”
Glaucoma in dogs can also cause acute vision loss, but you might not realize your dog has lost vision in one eye. “This is often not noticed by the pet owner because the pet compensates so well with the other eye, so vision loss in one eye is not obvious,” Dr. Beaumont says.
There are two types of glaucoma in dogs
There are two types of glaucoma in dogs: primary (also called inherited) and secondary (also called acute).
Dogs with primary glaucoma are born with a predisposition to developing glaucoma. “This is very common in certain breeds of dogs, such as the American Cocker Spaniel, Boston Terrier, Basset Hound, Chow Chow, Chinese Shar-Pei and Siberian Husky,” Dr. Beaumont says. “The other type of glaucoma is secondary glaucoma. This occurs when glaucoma develops due to some other underlying cause, such as progressed cataracts, uveitis (intraocular inflammation), intraocular tumor, trauma to the eye or infection inside the eye.”
How is glaucoma in dogs diagnosed?
Don’t brush off watery or red-looking eyes as “no big deal!” Whenever you notice something wrong with one or both of your dog’s eyes, see your vet right away. Do not put off an appointment — waiting too long could lead to permanent vision loss. Additionally, since glaucoma and other eye disorders may be extremely painful for your dog, you want to get him treated as quickly as possible.
“Glaucoma is diagnosed by checking the intraocular pressure of the eye using a special instrument called a tonometer,” Dr. Beaumont says. “Glaucoma is diagnosed when the pressure inside the eye is elevated.”
How is glaucoma in dogs treated?
If your dog has glaucoma, your vet will prescribe special eye drops to lower the intraocular pressure. Sometimes, surgery might be necessary. In cases where the pressure cannot be controlled with medications or surgery, your vet may recommend removal of the eye. This might sound extreme, but most dogs are already dealing with vision loss by this point and are already adjusting to using one eye to see.
Plus, worried about glaucoma yourself? Check out glaucoma symptoms, treatment and prevention for humans >>
Thumbnail: Photography ©IvonneW | iStock / Getty Images Plus.
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10 thoughts on “Glaucoma in Dogs: Symptoms, Diagnosis and Treatment”
the articlewas most helpful and my vet has not diagnosed
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Such an important article. Thank you for sharing this great stuff! For me, it was very difficult to diagnose glaucoma in dogs. Now, it`s much easier… Thanks again!