The eye color of a Maine Coon cat is usually blue. However, the breed is able to show unusual eye colors as well. According to the Cat Fanciers’ Association, these cats can have eyes in different colors, including green, gold, copper, and green-gold. Other color variations include amber, yellow, and orange.

Heterochromia Iridis

The all-white Maine Coon cat, or “odd-eyed” coon, has a unique type of eye pigmentation called heterochromia iris. This trait causes one eye to be blue, while the other is yellow-gold. This is caused by the presence of a dominant white gene that has removed pigmentation from the hair strands and iris of the left eye. White light refracts through the cornea of the left eye, resulting in a blue eye.

The two iris pigments, eumelanin and pheomelanin, are responsible for the colour of each eye. The odd-eyed coon’s right eye is a rich yellow-gold, while its left eye is blue. The iris is a circular muscle located in the eye. It creates a pupil that can vary in size, which allows light to pass through to the retina.

There are two different types of heterochromia: congenital and acquired. It usually appears in white cats, but is also present in cats of other colors with the white spotting gene. Cats with acquired heterochromia do not pass the trait on to their kittens.

While the appearance of the eyes is unattractive in itself, it’s important to note that this condition can indicate other health issues. If the eye color of a Maine Coon is unusual, it is likely a sign of underlying problems in the eyes.

Although heterochromia in cats is not associated with blindness, it can affect the cat’s hearing. About 30 to 40 percent of white cats with heterochromia are deaf. Symptoms include inflammation of the eye and a clear or yellow discharge from the eye.


The odd eyed Maine Coon was developed by breeder Aleksandra Arakeliants of Blue Ridge Cattery in Krasnodar, Russia, beginning in 2017. She sought special permission from FIFE to breed blue eyed Maine Coons with black smoke Altai males. Her offspring were analyzed by experts and confirmed as conforming to breed standards.

The cause of the odd eye in the Maine Coon is a genetic defect known as Heterochromia iridis, a condition that causes one eye to be blue. This genetic anomaly prevents melanin from reaching the eye of an affected cat. The affected cat will have a blue eye, while the other two eyes will be normal. Genetic studies have identified two genes that are responsible for the condition, which are passed on from one parent to the next. Both the A820W and the R31P mutations are unique to the Maine Coon breed.

The Maine Coon is considered a natural breed, and is related to the Siamese cat. Since the cat has a leg and legs, it wanders and does not live in isolation. Its Siamese ancestor had the colourpoint gene, which is recessive and will only show up in the offspring of two carriers.

Maine Coons have unusually large eyes. The eyes are spaced far apart on the face and are extremely expressive. The eyes are not completely white, but the condition is inherited and can have other health issues. Most cases of heterochromia are benign, although in rare cases, the condition can lead to blindness in one eye.

An odd eyed Maine Coon has two different eye colors. One eye is blue, and the other is white. Heterochromia affects humans and animals alike, and it is a condition caused by a defective gene that prevents melanocytes from developing in one eye.


The Maine coon has a unique color pattern on its face. Usually, a Maine kitten is born with blue eyes, but some kittens are born with odd eyes. These cats typically change color when they’re about seven weeks old. In addition to the odd eye color, a white Maine Coon has a pink nose and paw pads. In some cases, albino white Maine cats have pale pink noses.

One of the most common causes of an odd eye is a genetic condition called Heterochromia Iridis. This disease prevents melanin from reaching the cat’s eye. It causes one eye to be blue, while the other two are normal. The condition is caused by two genes that only affect Maine Coons. One inherits a dominant white gene and the other inherits a white spotting gene.

This condition affects one in 5,000 Maine Coons, so it is important to get your pet checked as early as possible. If the eye defect isn’t present at birth, it can be detected early in life and can be treated. Often, the condition can be treated with a course of medication that lasts a lifetime.

Another condition that causes Maine Coons to have odd eyes is heterochromia, or two different colors in their eyes. This condition is common among white cats but rare in other breeds of cats. While this condition is rarely serious, it can be a warning sign of other health issues.


The odd eyed Maine Coon has an eye defect called heterochromia iridis, which causes one eye to be blue and the other to be green. This type of eye disorder is rare in humans, but very common in cats. This condition is caused by a genetic anomaly that prevents the eye from receiving the melanin it needs. This condition affects only the eyes, and is not a health concern for most cats.

While this condition is usually treatable with home remedies, it can eventually lead to serious medical conditions, including heart failure. In some cases, a Maine Coon cat may need to be euthanized. For these cats, medication can improve their quality of life and prevent other health issues down the road.

Another disease that can affect the odd eyed Maine Coon is polycystic kidney disease, which affects approximately 6% of cats every year. Although most sufferers will live long, sadly some will experience chronic renal failure. But even if the condition does not cause a cat to lose their eyes, it will cause significant pain.

While there is no known cure for this disease, medication can help to improve the quality of life of your pet. Maine Coons are famous for their devotion to their family and love being around them. They are typically very affectionate and will follow you from room to room. If you’re unsure of the cause of your odd eyed Maine Coon’s condition, talk with your vet. Your veterinarian may be able to diagnose it through an x-ray of the affected joint. They may prescribe anti-inflammatory medications or supplements that help strengthen the connective tissues in the hip joint.


The Maine Coon is one of the oldest native breeds of cats in the United States. It evolved to withstand harsh winters and the natural wild environment of Maine. Because of the distances between human settlements, this breed remained largely unmixed for hundreds of years. This means that the cat’s genes are not subject to the same mutating pressures as other breeds.

The origin of the Maine Coon is unknown but it is believed that it is related to European ship cats. Historically, ship captains kept cats on board to keep rats and mice under control. Some of these cats developed a long hair coat, which made them desirable to ship captains. While this is not the only theory, some seafaring families have maintained their own long-haired cat strain for generations.

The origin of the colourpoint gene in the Maine Coon is still not fully understood. However, it is known that colourpoint is an inheritable trait and that it can be passed on from one parent to another. It is thought that the Maine Coon developed colourpoint from a Siamese ancestor, and that the gene is recessive, so if two carriers of the gene are bred together, a colourpoint kitten will be produced.

Some breeds of Maine Coons are predisposed to the condition of hypertrophic cardiomyopathy. This condition affects the neurons of the cat’s spine, and results in abnormal gait and posture. While this is not fatal, it can lead to severe pain and discomfort for the Maine Coon. This disease can be detected at the early age of two.

The white Maine Coon is most likely to develop this condition. Its eyes are much larger than normal cats’. It is due to an inborn error in the distribution of melanin. The affected eye will be blue while the other two eyes are normal. There are two genes responsible for heterochromia, and only the Maine Coon inherits one of the two.