Cataracts in Diabetic Dogs

February 18, 2026

Cataracts in Diabetic Dogs

If your dog has diabetes, you already know how important daily management is. Monitoring insulin, managing diet, and keeping up with regular exercise — it all matters when managing canine diabetes. But one complication that can catch pet parents off guard is diabetic cataracts.

 

That’s exactly what happened to us when our diabetic pup Jetty developed cataracts and required surgery. After surgery and with a healthy, low-glycemic diet, Jetty maintained limited vision for several years.

 

Why Do Diabetic Dogs Develop Cataracts?

When a dog has diabetes, excess glucose circulates in the bloodstream. That glucose can accumulate in the lens of the eye. Over time, it converts into sorbitol, which draws water into the lens, causing it to swell and become cloudy. That cloudiness is a cataract. In fact, diabetic cataracts in dogs can progress much faster than age-related cataracts.

 

In fact, cataracts are one of the most common complications of canine diabetes. It’s estimated that 75% of dogs develop cataracts in the first year of being diagnosed with diabetes.

 

Early Signs of Cataracts in Diabetic Dogs

Because diabetic cataracts can progress rapidly, it’s important to know what to look for:

  • Cloudy or bluish appearance in one or both eyes
  • Sudden vision changes
  • Bumping into furniture or walls
  • Hesitation on stairs
  • Increased anxiety or clinginess
  • Redness or irritation in the eye

If you notice any of these signs, contact your veterinarian right away. Early diagnosis gives you more options.

 

Can Diabetic Cataracts Be Treated?

In most cases, surgery may be an option to restore vision. If left untreated, diabetic cataracts can lead to severe lens-induced uveitis, which may result in glaucoma, a condition that is particularly challenging to manage in dogs with diabetes. That’s why prevention, early detection, and consistent diabetes management are so important.

 

Even if vision changes occur, dogs adapt remarkably well, especially when supported by attentive, loving owners.

 

Protecting Your Dog’s Eye Health

While cataracts aren’t always preventable in diabetic dogs, good management makes a difference.

 

Here’s what helps:

 

1. Consistent Blood Sugar Control

Stable glucose levels reduce stress on the eyes and the entire body. This can help delay the onset of vision problems.

 

2. Regular Veterinary Exams

Your vet can monitor for early changes and discuss options if cataracts develop.

 

3. Proper Nutrition

A low-glycemic, balanced diet supports blood sugar control and overall metabolic health in diabetic dogs. Avoiding sugary and highly processed treats is essential.

 

4. Weight Management

Excess weight can make diabetes harder to control, increasing the risk of complications.

 

The Role of Healthy Dog Treats in a Diabetic Dog’s Routine

Managing diabetes means every part of your dog’s routine matters, including treats. Choosing low-glycemic rewards that won’t spike blood sugar helps maintain stability and supports overall health, including eye health.

 

That’s why our Old Dog Cookie Company Diabetic Dog Treats are formulated specifically for diabetic dogs. They’re all-natural, low-glycemic, low-calorie, made with human-grade ingredients, and free from preservatives and fillers — giving you a safe way to reward your dog without disrupting their management plan.

 

Veterinary ophthalmologists who regularly treat diabetic dogs agree:

 

“We have many happy owners who appreciate that Old Dog Cookie Diabetic Treats will not interfere with their dog's diabetes. It makes the insulin injection episode more tolerable. In the 13 years that we have been selling your diabetic cookies, we have never witnessed these cookies interfering with our patients’ diabetes.”
— Kristiane S. Schmidt, DVM, DACVO, Veterinary Ophthalmology Services, Arroyo Grande, CA

 

“We see a large number of dogs yearly with diabetes and cataracts and it is nice to be able to offer them a cookie or treat during the exam to lessen their anxiety.”
— Dennis Olivero, DVM, DACVO, Veterinary Ophthalmology Specialty Practice, Minneapolis, MN

 

When you’re managing canine diabetes and watching for complications like cataracts, consistency is everything. And its nice to know that your diabetic dog can still have a tasty and healthy reward along the way.

 





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