Horner's Syndrome and Ear Infection in a Cat

An ear infection in a cat can lead to Horner's syndrome.
An ear infection in a cat can lead to Horner's syndrome. (Image: tired cat image by 26kot from Fotolia.com)

A cat with an ear infection can experience discomfort and discharge from the infected ear. An ear infection can lead to serious complications that can affect a cat's balance or its eyes.

Horner's Syndrome

Horner's syndrome is a neurological condition. A cat with Horner's syndrome will have one eye with a smaller pupil and a drooping upper lid. The third eyelid of that same eye will protrude and the eye could appear sunken, according to "Cat Owner's Home Veterinary Handbook."

Ear Infection

A cat experiences an ear infection when bacteria or fungus grows within the ear, causing itching, inflammation and discharge.


An ear infection can occur when water or grass lodges in a cat's ear. According to the University of Sydney, a severe ear infection can cause damage to the nerves that affect a cat's eye, leading to Horner's syndrome.


An ear infection can be treated by cleaning a cat's ear with eardrops. Oral medication could be needed for severe infections. Horner's syndrome might resolve over time. Antiinflammatory medications can help a cat heal.


"The First+Aid Companion for Dogs & Cats" states that keeping a cat's ears clean and dry can prevent ear infections from beginning or from becoming serious.

Related Searches


  • University of Sydney: Horner's Syndrome
  • "Cat Owner's Home Veterinary Handbook;" Debra Eldredge, Delbert G. Carlson, Liisa D. Carlson, Beth Adelman; 2007.
  • "The First+Aid Companion for Dogs & Cats;" Amy Shojai; 2001.
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