Cataracts In Dogs

Cataracts are a clouding of the lens of the eye, resulting in blurry vision. Smaller cataracts in dogs have less impact on vision than larger ones, but still must be regularly monitored to prevent blindness. Old age, disease, and eye trauma can cause cataracts, although they most commonly stem from inherited conditions.

Symptoms of Cataracts in Dogs

The 6 Signs of Cataracts in Dogs are the following

1. Cloudy, bluish-grey eyes
2. Clumsy movement
3. Blinking more than usual
4. Irritated, red eyes
5. Discharge in the eye area
6. Pawing and scratching the eyes

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Breeds Prone To Cataracts And Age Of Onset

What Causes Cataracts in Dogs?

Causes for canine cataracts include the following:

• Eye Injury
• Diabetes
• Old Age
• Nutritional disorders
• Genetic Inheritance
• Toxic Cataracts Caused by Disease
• Infection
• Birth-defects
• Radiation from Cancer Therapy

4 Stages of Canine Cataracts

An incipient cataract, also known as an immature cataract, is a very small, partial cataract that does not require surgery unless it’s in a worrisome location or progressing unusually fast. In incipient cataracts, the dog’s eye lens is slightly cloudy and opaque with a clear outer layer. The lens of the eye is only slightly opaque, with a clear cortex. Many cataracts in the incipient stage can be managed via routine follow-ups with a veterinary ophthalmologist or your regular vet.

An immature cataract contains some clouding and opacity from protein buildup and it is considered the ideal stage for surgery. Swelling from fluid buildup during the immature phase make fracturing the lens easier for the surgeon. If an immature cataract goes untreated, the swelling may increase severely, causing intumescence (swelling, congestion) which leads to glaucoma, loss of vision and surgical complications.

Mature cataracts are an advanced cataracts stage involve clouding of the entire lens. Since the eye is considerably damaged at this stage, surgical outcomes for mature cataracts lens are not optimal. Post-operative complications include lens instability, uvetis and capsular plaque buildups. Damaged tissue in mature cataracts makes surgery more challenging and operative risks at this stage include inflammation, tearing of distorted eye capsules, difficulty implanting the artificial lens and coexisting conditions like glaucoma and retinal detachment.

The hyper mature stage is the most advanced phase of cataracts disease in dogs. The eye is in the final stage of degeneration and untreated, hyper mature cataracts may cause loss of lubrication and moisture in the eye area, lens displacement, glaucoma, and retinal detachment. Vision loss is common in this disease phase and the affected eye can appear completely cloudy. It can take months or years to transition from the mature to hyper mature stage. As the cataract worsens from mature to hyper mature, the eye’s appearance wrinkles severely, similar to a grape turning into a raisin. Surgery may not be a viable option for dogs in the hyper mature stage due to difficulty implanting the artificial intraocular lens (IOL), scar tissue and structural damage in the nucleus and fibrotic lens capsule.

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Types of Cataracts in Dogs

Punctate cataracts are at the beginning, the earliest stage of the cataracts disease. Since not all cataracts advance, Veterinary Ophthalmologists will give a dog with punctate cataracts a passing exam on a CERF testing report. The punctate cataract will have cloudy, opaque dots scattered throughout the lens. If the cause is genetic, the punctate cataract will usually progress and symptoms will worsen as the dog ages.

Posterior or “back surface” cataracts are small opaque, cloudy pockets of disease noticeable in the beginning (incipient/immature phase) stage of canine cataracts. Also known as subcapsular cortical cataracts because they form underneath the lens capsule, posterior cataracts should be watched closely because they develop rapidly with symptoms worsening within months.

A unilateral cataract affects only one eye and is caused by trauma and secondary health problems. A unilateral cataract can also be congenital meaning it’s present as a birth defect but might not develop until later in the dog’s life. Younger dogs tend to develop unilateral cataracts more commonly because of their playful puppy nature. The most common treatment for a unilateral cataract is surgery if surgery isn’t recommended, your veterinary ophthalmologist may use topical corticosteroids and anti-glaucoma medications.

Cataracts at this stage will appear as very small clouds or opaque pockets in the dog’s eye. Incipient cataracts are very small and usually do not interfere with vision. However, these early-stage cataracts can progress into a mature or hypermature cataracts, which can cause vision loss and blindness. For these reasons, dogs and puppies with incipient cataracts should be routinely checked by a veterinary ophthalmologist for signs of disease progression.

As the name suggests, nutritional cataracts are caused by a nutrient imbalance that results in a loss of clear transparency in the dog’s eye lens. Nutritional cataracts usually show up within the first few months of a puppy’s life and commonly appear when a puppy is switched from breast milk to a milk replacer. Although nutritional cataracts can improve with age and usually don’t usually interfere with vision, veterinarians recommend supplementing a milk replacer with arginine-rich beef or liver baby food. Arginine deficiency is considered the main cause for nutritional cataracts

Y sutures are lines that all dogs have on the front and back of their eye lens. The y-shaped suture line occurs as a result of the prenatal formation of eye lens tissue as the lens fibers grow into each other. Cataracts located at the y suture position advance less quickly and may not advance at all.

Surgery & Other Treatment Options

Dog cataracts are treatable and several options can be combined for optimal outcomes. While eye drops, supplementation and diet changes may reduce the severity of canine cataracts, immature, mature and hypermature cataracts can only be removed by surgery. However, it can be very expensive up to $3,000 per eye. If left untreated, cataracts can cause permanent vision loss and eventually, blindness. Most dogs with cataracts do not require surgery because most lens opacities in dogs (also known as cataracts) are small and don’t significantly interfere with vision. Only a veterinary ophthalmologist can determine if a dog requires cataract surgery. If your dog is prone to cataracts, consider enrolling in pet health insurance to help cover the cost of surgery, so their vision is never at risk.

Natural Treatments for Cataracts in Dogs

Can you treat cataracts in dogs naturally?

Research data to support the use of natural treatments in canine cataracts is specious and more studies are needed to conclusively prove the efficacy of natural treatments like the homeopathic remedy Cineraria, vitamin C with bioflavonoids and eyebright + bilberry herbs.

Can essential oils help cataracts in dogs?

There is no evidence that any essential oil can help cataracts in dogs. Additionally, essential oils can destroy corneal tissue, cause vision loss, eye injuries, rashes, and burning. Placing essential oils in your dog’s eyes can cause blindness. Instead, visit a veterinary ophthalmologist for approved, research-based medical treatments to treat your dog’s cataracts.

Can n-acetylcarnosine eye drops treat cataracts in dogs?

UCLA ophthalmologist Joseph Horowitz calls n-acetylcarnosine eye drops “snake oil,” citing a lack of FDA approval and no evidence linking n-acetylcarnosine to any benefits for canine cataracts. Companies marketing the antioxidant carnosine as a cure for cataracts in dogs are being accused by government officials and veterinary experts of false advertising and veterinarians remind consumers that no scientific evidence exists supporting the carnosine as an effective treatment in canine cataracts.

Does vitamin E help cataracts in dogs?

In a double-blind, controlled human study researchers concluded that supplementation with Vitamin E is unlikely to benefit cataracts. Various supplement companies recommend and sell vitamin E supplements for cataracts in humans and dogs but there is no empirical evidence showing that vitamin E reduces the risk for cataracts.

Are there vitamins and supplements for cataracts in dogs?

Human studies have shown several promising natural treatments for canine cataracts. In a human study, glutathione was shown to reduce and correct cataract formation by repairing the damage done by free radicals. Another veterinarian claims he’s been using 20,000 IUs of vitamin A daily for 10 weeks as part of a successful, natural cataracts treatment protocol. Vitamin C has also been found to be beneficial for cataracts for its ability to reduce inflammation and intraocular eye pressure. Cod liver oil and oils rich in omega-3 fatty acids such as flaxseed oil have demonstrated remarkable improvements in intraocular eye pressure.

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Diabetes and Cataracts in Dogs

Does diabetes cause dog cataracts?

Although the exact causes are still unknown, dogs with diabetes face a much greater risk of developing cataracts, possibly due to blood sugar abnormalities.

How do you prevent cataracts in dogs with diabetes?

A 2012 study tested an antioxidant vision supplement on diabetic dogs who hadn’t yet formed cataracts. In the group that received the treatment, 3 out of 15 dogs had developed cataracts after one year compared to 9 out of 15 dogs in the placebo group.

Why are cataracts so dangerous to diabetic dogs?

Cataracts are very dangerous to diabetic dogs and 75% of dogs with diabetes will go completely blind within 9 months of being diagnosed with cataracts.

How quickly do cataracts progress in a dog with diabetes?

Cataracts develop very quickly in diabetic dogs and can progress as quickly as overnight! Complications of diabetic cataracts include headaches, inflammation, tears and ruptures to the delicate eye tissue and even surgical removal of both eyes. If your dog has been diagnosed with diabetes, veterinarians recommend seeing an ophthalmologist immediately to avoid eye damage and vision loss.

What is discharge in diabetic dogs?

Dogs with diabetes can suffer from conditions like hypothyroidism and Cushing’s disease, which can problems with tear production and eye lubrication leading to thick, yellowish-green discharge and infections.

What are the first signs of diabetic cataracts in dogs?

Cataracts may develop in puppies for several reasons. If the young dog is diabetic then the chance of developing cataracts increases significantly. Mellitus-related cataracts cause blindness in 75% of dogs within one year of the diagnosis so if you suspect your puppy is developing diabetic cataracts, visit a veterinary ophthalmologist immediately. The second and third causes of puppy cataracts are congenital (birth defect) or hereditary (genetically inherited). Finally, younger dogs may develop cataracts after trauma to the eye from playing, fighting or scratching the area.

Final Thoughts on Cataracts in Dogs

Cataracts can be very troublesome for a dog, but it could also become quite expensive for the owner. This is where a dog insurance policy could be valuable. Pet insurance can save you a lot of money in the future. If you’re thinking about buying a policy, be sure to read our guide to pet insurance.

Dr. Karen Becker Discusses the Link Between Diabetes and Cataracts

https://youtu.be/vyoGoex2SN0

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Common Health Problems:

Acral Lick Granuloma in Dogs

Alopecia in Dogs

Antifreeze Toxicity in Dogs

Aortic Stenosis in Dogs

Arthritis In Dogs

Bladder Stones in Dogs

Boxer Cardiomyopathy

Cataracts In Dogs

Cherry Eye in Dogs

Chronic Active Hepatitis in Dogs

Collie Eye Anomaly In Dogs

Constipation in Dogs

Cruciate Ligament Tear in Dogs

Cryptorchidism in Dogs

Cushing’s Disease in Dogs

Degenerative Myelopathy | Spinal Cord Disease In Dogs

Dementia in Dogs | Canine Cognitive Dysfunction

Demodicosis In Dogs

Dental Problems in Dogs

Diabetes In Dogs

Dog Comedones (Schnauzer Bumps)

Dog Diarrhea: What Can You Do To Help?

Dog Ear Infections

Dystocia in Dogs

Ectropion in Dogs

Elbow Dysplasia in Dogs

Entropion In Dogs

Eye Problems in Dogs

Fleas in Dogs

Gallbladder Obstruction in Dogs

Gallstones in Dogs

Gastroenteritis In Dogs

Glaucoma in Dogs

Heart Murmurs In Dogs | How To Identify Them

Hip Dysplasia in Dogs

Hot Spots On Dogs

Hyperparathyroidism In Dogs

Hypothyroidism In Dogs

Intervertebral Disc Disease In Dogs

Nasal Solar Dermatitis In Dogs

Patellar Luxation in Dogs

Progressive Retinal Atrophy In Dogs

Renal Failure in Dogs

Seizures in Dogs

Wobbler Syndrome In Dogs

The Dog Flu – Symptoms & Treatment for Canine Influenza

Dog Biting Nails

 

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