Re: Why do the pupils of my dogs eyes look blue?

My guess is that your dog is older and his eyes are changing. The following information came from PetEducation.com Offering customers helpful information is -- and always will be -- a priority for Dr. Foster and Dr. Smith. “I often get people that bring an older dog into the clinic complaining of cataract formation in their dog’s eyes. The vast majority of the time the dog does not have cataracts but has the much more common condition known as nuclear sclerosis. Nuclear sclerosis is a normal change that occurs in the lens of older dogs. Nuclear sclerosis appears as a slight graying of the lens. It usually occurs in both eyes at the same time and occurs in most dogs over six years of age. The loss of transparency occurs because of compression of the linear fibers in the lens. The condition does not significantly affect the vision of the dog and treatment is not recommended.”