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Eyes/Ears/Skin

Your pet’s eyes allow perception of colors, forms, and depth. What you see from the outside represents a fraction of what the eye beholds. A dog and cat’s eye is a complex organ that offers a window into the rest of the body. When looking inside the eye with specialized equipment, your veterinarian sees blood vessels, nerves, and lymphoid tissue that cannot be seen in other areas of the body from the outside.

The structures within the eye comprise 3 basic layers: 1) the protective, enveloping layer that you see from the outside-the white sclera and clear cornea; 2) the blood vessel layer, known as the uvea, and 3) the neurologic layer or retina. Inflammation in any of these layers of the eye results in a red eye. Careful examination of these three layers by your veterinarian determines if the cause of the red eye indicates a local problem, such as conjunctivitis or glaucoma; or a systemic problem, such as retinal bleeding caused by an elevated systemic blood pressure.

The skin is the largest organ in the body; it acts like a glove over your pet’s body providing warmth and protection. Secretions from the skin keep germs and water outside the body and bodily fluids inside the body. Breakdowns in this protective barrier lead to many conditions, such as, hair loss, infections, and fluid losses.

The appearance of your pet’s skin provides insight to the overall health of your pet. Common conditions affecting your pet’s skin include: allergiesbacterial and yeast infectionsringworm, and external parasites, such as fleas and mites. Systemic conditions, such as autoimmune disorders, hormonal imbalances, or nutritional deficiencies, display characteristic patterns in the skin.

Your pet’s ears are an extension of your pet’s skin. The ears are divided into 3 sections: 1) the external ear canal extends from the outside to the ear drum, 2) behind the ear drum lays the middle ear (tympanic cavity), and lastly, 3) the inner ear. In contrast to people, the majority of ear problems in dogs and cats occur in the external ear canal. Inflammation of the external ear canal often results in bacterial and/or yeast infections. Left untreated, these infections will extend into the middle and inner ear cavity, causing diminished hearing and loss of balance.

The eyes, ears, and skin of your pet can be a gateway to the inside of your pet’s body. While the eyes, ears, and skin display their own pathologies separately, they can also be indicators of a more systemic process.

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