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Allergies to cats, a type of animal allergy, are one of the most common allergies experienced by humans.Among the eight known cat allergens, the most prominent allergen is secretoglobin Fel d 1, which is produced in the anal glands, salivary glands, and, mainly, in sebaceous glands of cats, and is ubiquitous in the United States, even in households without cats. [1]
Cancer in cats is the leading cause of death among cats. It is caused by uncontrolled cell growth, and affects a wide range of cell types and organs in the body. Feline cancer initially manifests as a lump or bump on any part of the body.
Symptoms include eye pain, eye redness, floaters and blurred vision, and ophthalmic examination may show dilated ciliary blood vessels and the presence of cells in the anterior chamber. Uveitis may arise spontaneously, have a genetic component, or be associated with an autoimmune disease or infection.
One of the cat diseases caused by malnutrition is central retinal deficiency, a dysfunction in cats that can be hereditary as well. [14] The retina, a thin layer of tissue in the back of the eye, is the structure affected by this disorder.
Cats will adjust their eyes during the day, allowing less light to filter in, while their pupils will expand at night to allow for more light, Purina reports. Feline eyes also have more "rods ...
White cats having one blue and one other-colored eye are called "odd-eyed" and may be deaf on the same side as the blue eye. [16] This is the result of the yellow iris pigmentation rising to the surface of only one eye, as blue eyes are normal at birth before the adult pigmentation has had a chance to express itself in the eye(s).
Tiki, a 20-year-old blind cat from New England, was rescued by Good Samaritans after floating on a piece of ice on a Massachusetts lake and falling in on Dec. 16, 2024.
Other symptoms include foreign-body sensations, itching, burning, stinging, and sensitivity to light. [24] Eyes can become more susceptible to infection. About half of the people with subtypes 1–3 also have eye symptoms. Keratitis is a rare complication which is characterized by blurry vision and vision loss as the cornea is affected. [24] [25]