Why Are My Dog's Eyes Cloudy?

It can be worrying to notice a cloudy or hazy appearance in your dog’s eyes. However, cloudy eyes are quite common in dogs, especially when they get older. Some causes are harmless, while others need urgent veterinary care. Knowing what may be causing a cloudy eye in a dog can help you seek the right treatment and protect your dog's vision.

What Are Cloudy Eyes in Dogs?

Cloudy eyes refer to any haziness, opacity, or blue-grey film that affects the appearance of one or both eyes. Cloudiness can develop in different parts of the eye, including the cornea, the lens, or deeper structures.

What Are The Causes of Cloudy Eyes In Dogs?

Several conditions can make a dog's eyes appear cloudy.

• Nuclear sclerosis: A normal age-related change where the lens fibers become compressed, creating a blue-grey haze. This cause is painless and does not affect a dog’s vision.
• Cataracts: Causes the lens to become cloudy or opaque. They may appear as mild cloudiness or progress to a completely white lens and can affect vision. Cataracts can be linked to diabetes, genetics, ageing, or eye injuries.
• Glaucoma: Develops when pressure builds-up inside the eye. This is a medical emergency and can cause permanent blindness if not treated quickly.
• Corneal ulcers: Wounds or scratches on the surface of the eye caused by injury, dry eyes, or foreign objects resulting in cloudiness, redness, and pain.
• Dry eye: Also known as Keratoconjunctivitis Sicca (KCS), happens when the eyes do not produce enough tears to keep the surface lubricated.
• Anterior uveitis: Caused by inflammation inside the front part of the eye. It may be linked to infection, injury, and immune-related diseases.
• Corneal dystrophy: An inherited condition in which abnormal material accumulates in the cornea, causing clouding.

Common Conditions That Cause Cloudy Eyes

In older dogs, nuclear sclerosis is the most common cause of cloudy eyes. It does not require treatment, but vet checkups are highly recommended since the condition can look similar to cataracts. Cataracts also become more common with age, especially in dogs with diabetes. Breeds such as Cocker Spaniels, Boston Terriers, and Miniature Poodles are more likely to develop cataracts because of their genetics.

Should You Go To The Vet If Your Dog's Eyes Are Cloudy?

Yes. Although nuclear sclerosis is generally harmless, it can look very similar to cataracts. Seek urgent veterinary care if the cloudiness appears suddenly or if your dog's eye is red and cloudy, painful, or accompanied by squinting. Also note that cloudiness is less common in younger dogs, so a cloudy eye in a puppy should be examined by a veterinarian to determine the underlying cause.

How Do Vets Diagnose Cloudy Eyes in Dogs?

Veterinarians use several tests to find the cause of cloudy eyes. The Schirmer tear test measures tear production and helps diagnose dry eye. Fluorescein staining highlights corneal ulcers under a special blue light. Tonometry measures pressure inside the eye and is used to assess glaucoma. A detailed examination of the retina and lens is performed using specialized lights and equipment.

How Do You Treat Cloudy Eyes in Dogs?

Treatment for cloudy eyes in dogs depends on the underlying cause:

• Nuclear sclerosis does not require treatment. Regular monitoring is usually enough.
• Cataracts are most effectively treated with surgery.
• Glaucoma is treated with medication to lower eye pressure. Surgery may be needed in severe cases.
• Corneal ulcers are commonly treated with antibiotic and anti-inflammatory eye drops. Deep ulcers may require surgery.
• Dry eye is often managed with medications such as cyclosporine or tacrolimus eye drops to increase tear production.
• Anterior uveitis is typically treated with anti-inflammatory medications, including prescription eye drops.

Healthy Eyes Start With Early Care

Healthy eyes play an important role in your dog's well-being. While some causes of cloudy eyes are simply related to ageing, others can affect your dog's comfort or vision if left untreated. If you notice any changes in your dog's eyes, a prompt veterinary examination can help identify the cause and determine the appropriate treatment.

For more information on dog health and wellness, take some time to explore the PEDIGREE® blog for helpful tips and insights on caring for your dog.