My Dog's Eye Is Blue and Cloudy: What Does It Mean?

My Dog's Eye Is Blue and Cloudy: What Does It Mean?

Your canine best friend is part of your family, so you naturally want the very best for them. That means when you see something wrong, such as your dog’s eyes turning blue, you begin to panic. Blue or cloudy eyes can be a natural part of the aging process, but it could also be a very serious condition.

A blue eye in dogs could be caused by a wide range of issues, and in this blog, we are going to take a look at some of the most common causes.  

Nuclear Sclerosis

This is a condition that sees the hardening of the eyes lens and is a very common cause of a blue eye in dogs as they get older. While it will typically occur in both eyes, this is not always the case. Thankfully, nuclear sclerosis is not harmful to the dog are very rarely does it cause any impairment to their vision.

As it does not have any lasting impact on your pet, nuclear sclerosis requires no treatment, although you should discuss with your vet what to expect as they continue to age.


If you have noticed your dog’s eyes turning blue, another very common cause is cataracts. This condition is exactly the same as it is in humans, and can lead to the lens becoming milky. Cataracts typically occur with old age or following some kind of trauma and can make it hard for your pet to see and, if left untreated, result in total blindness.

Certain breeds of dogs are more susceptible to cataracts than others, and the condition can lead to other serious problems such as glaucoma. Identifying cataracts quickly can help you to reduce the symptoms.  Dog in shelter waiting for home

Corneal Dystrophy

Another very common cause of blue eyes in dogs is Corneal Dystrophy. While it does give your pet a bluish hue, this condition does not usually result in any vision loss. Typically an inherited condition, Corneal Dystrophy comes in three types depending on where in the eye it forms: epithelial, stromal, and endothelial.

 A veterinarian will be able to identify which type your dog has by using a microscope and will be able to prescribe you with a range of antibiotics to help treat it.


One common reason for blue eyes in puppies and adult dogs is glaucoma. This is the condition where the fluid in the eye is not able to drain correctly. This increases pressure in the eye, which can then lead to internal damage that can cause decreased vision and eventually blindness.

Not only does glaucoma lead to blindness if left untreated, but it will also cause significant discomfort and irritation to the dog. If you have noticed your dog’s eyes turning blue, your vet will be able to quickly identify glaucoma.

Anterior Uveitis

While a blue eye in dogs can often be a benign symptom, it can also be a serious condition such as Anterior Uveitis. This condition results in inflammation of the iris, which is an incredibly painful condition that can result in your dog pawing at their eyes and losing their vision.

However, while this is a serious illness, it can be easily treated with eye drops, ointment, or oral medication.

Final thoughts

If you have noticed your dog’s eyes turning blue and cloudy, then it is very important that you make an appointment to see your vet as soon as possible. While it could simply be a harmless part of the aging process, it could also be a serious condition that could lead to permanent damage

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