VCA Animal Hospitals
Published: May 07, 2012

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If you notice some irregularities in your canine companion's puppy-dog eyes, it's always a good idea to look a little closer. There are a number of issues that can arise in your dog's eyes, from corneal scratches and infections to glaucoma or other diseases.

Anisocoria in dogs is one irregularity to look for. Anisocoria is characterized by different-sized pupils in each eye, and can indicate a number of underlying conditions. Because anisocoria is a clinical sign, it is important for owners to work with the veterinarian to determine what the underlying cause might be.

Pupil irregularities can be caused by a corneal injury like an ulcer. They can also be a result of disease or injury to the brain and nerves near the eye. Retinal disease, cancer, glaucoma in dogs and other issues may be at play. VCA Animal Hospitals reports that if the anisocoria occurs suddenly, it should be treated as an emergency situation to prevent serious damage to your dog's vision.

When the veterinarian is examining the dog's eyes, he or she will focus on determining whether the issue is neurological or eye-related, according to PetMD.com. The treatment will be based on the underlying medical condition.

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