
-
Find the right food for your pet
Take this quiz to see which food may be the best for your furry friend.
Find the right food for your pet
Take this quiz to see which food may be the best for your furry friend.
Featured products
Adult 7+ No Corn, Wheat, Soy Chicken & Brown Rice Dog FoodSupports energy level and beautiful coat in mature dogs
Shop NowAdult 7+ Perfect Digestion Chicken, Whole Oats & Brown Rice Recipe Dog FoodScience Diet's breakthrough nutrition supports ultimate digestive well-being & healthy microbiome for dogs age 7+
Shop NowAdult Perfect Weight & Joint Support Chicken Recipe Dry Dog FoodThis weight management and mobility support dog food was created with Hill’s unique understanding of the biology of overweight dogs.
Shop NowFeatured products
Adult Perfect Digestion Chicken, Barley & Whole Oats Recipe Cat FoodScience Diet's breakthrough nutrition supports ultimate digestive well-being & healthy microbiome
Shop NowAdult Savory Chicken Entrée Cat FoodPrecisely balanced nutrition with the delicious taste of savory minced chicken to help fuel the energy needs of cats during the prime of their life
Shop NowPerfect Weight Salmon & Vegetable Canned Cat FoodOver 70% of cats lost weight within 10 weeks when fed this nutrition
Shop Now -
Dog
- Dog Tips & Articles
-
Health Category
- Weight
- Food & Environmental Sensitivities
- Urinary
- Digestive
- Joint
- Kidney
-
Life Stage
- Puppy Nutrition
- Adult Nutrition
- Senior Nutrition
Cat
- Cat Tips & Articles
-
Health Category
- Weight
- Skin & Food Sensitivities
- Urinary
- Digestive
- Kidney
-
Life Stage
- Kitten Nutrition
- Adult Nutrition
Featured articles
Pet Food Storage TipsDiscover how and where to store your dry, as well as canned, dog and cat food. Learn how to find the "best before" dates on all Hill's pet food packaging.
Read MoreWaterDiscover why water is the most important nutrient for your dog or cat to live a healthy life. Find out how much water your pet should consume each day.
Read MoreThe Incredible Science Behind Your Pet's MicrobiomeLearn what a pet's microbiome is, how it contributes to your pet's gut & overall health, and why nutrition is important in maintaining healthy microbiomes.
Read More -
Find the right food for your pet
Find the right food for your pet


Though it seems unique, the phenomenon of dogs with two different colored eyes is actually fairly common among certain breeds. Read on to learn what causes heterochromia in dogs and whether it can cause health issues.
Causes of Heterochromia in Dogs
Heterochromia is the scientific term for two different-colored eyes. It not only occurs in dogs but also affects cats, horses and occasionally even people. Heterochromia is caused by a lack of the pigment melanin in all or part of one eye. In dogs with heterochromia, the lack of melanin causes one of their eyes to appear blue or bluish-white.
Heterochromia in dogs is often hereditary, meaning it is passed through their genetic makeup. But it can also be acquired later in life as the result of an eye injury or a health condition, points out Dogster. While hereditary heterochromia eyes are usually nothing to worry about, if you ever notice either of your dog's eyes changing color, you should contact your veterinarian and get your pup's eyes checked.


Tasty Tips
Types of Heterochromia
Heterochromia shows up in the following three ways:
- Heterochromia iridis: Also known as complete heterochromia, this is when the dog has two entirely different eye colors.
- Sectoral heterochromia: This occurs when the iris is only partially blue.
- Central heterochromia: With this type of heterochromia, the blue coloring radiates out from the pupil, mixing with another color in a spiked pattern.

Though it seems unique, the phenomenon of dogs with two different colored eyes is actually fairly common among certain breeds.![]()
Jean Marie Bauhaus

A great looking coat attracts more petting
Pets benefit from looking good, too. Make sure your dog's fur is its finest. With our science-led Braised Beef, Carrots & Peas Stew Dog Food.
A great looking coat attracts more petting
Pets benefit from looking good, too. Make sure your dog's fur is its finest. With our science-led Braised Beef, Carrots & Peas Stew Dog Food.
Dogs With Different-Color Eyes
Heterochromia is most common among these breeds:
- Australian cattle dogs
- Australian shepherds
- Border collies
- Chihuahuas
- Dachshunds
- Dalmatians
- Great Danes
- Shetland sheepdogs
- Siberian Huskies
- Shih tzus
The color and pattern of a dog's coat appear to have an influence on how heterochromia manifests in dogs, according to Dogster. Generally, heterochromia is more common in dogs with dappled, merle or white coloring around their heads. Heterochromia iridis occurs most frequently in huskies, Dalmatians, and Australian shepherds and cattle dogs. The other breeds are more prone to the other two types of heterochromia.


No Corn, Wheat, or Soy Dry Adult Dog Food
Do Dogs With Heterochromia Have Health Problems?
While it's commonly believed that having two eyes with different colors is a sign of blindness or vision problems, dogs with hereditary heterochromia have normal vision. Another fairly common belief is that dogs with heterochromia have hearing problems. This is untrue in the vast majority of cases, though Dogster points out that Dalmatians with heterochromia do have a higher prevalence of deafness.
As mentioned previously, acquired heterochromia can result from an eye injury or a health condition. Acquired heterochromia can also be similar in appearance to several eye conditions, including cataracts and glaucoma, so it's important to check with your veterinarian if you notice your dog's eye colors changing.
Most dogs with heterochromia don't have any related health problems — they just have a more unique set of peepers than other pups!


Jean Marie Bauhaus is a pet parent, pet blogger, and novelist from Tulsa, Oklahoma, where she usually writes under the supervision of a lapful of fur babies.

Put your dog on a diet without them knowing
Our low calorie formula helps you control your dog's weight. It's packed with high-quality protein for building lean muscles, and made with purposeful ingredients for a flavorful, nutritious meal. Clinically proven antioxidants, Vitamin C+E, help promote a healthy immune system.
Put your dog on a diet without them knowing
Our low calorie formula helps you control your dog's weight. It's packed with high-quality protein for building lean muscles, and made with purposeful ingredients for a flavorful, nutritious meal. Clinically proven antioxidants, Vitamin C+E, help promote a healthy immune system.
