Eosinophils are white blood cells, a part of the cat's immune system. In a cat with this condition, the outer layer of the cornea has many eosinophils and mast cells (another component of the cat's immune system). The eye has a white plaque over it. These cells are associated with immune reactions and allergies.
|Eosinophilic Keratitis - Photo copyright Cuyahoga Falls Veterinary Clinic|
The cause of eosinophilic keratitis is unknown. Apparently herpesvirus may be the cause or one cause.
The treatment is more about controlling the condition by the use of anti-inflammatory drugs (topical steroids and oral corticosteroids)1.
Associated: Shocking truth about the feline herpesvirus.
Thanks: This photo has been used with permission for teaching/educational purposes at PoC. The photo was provided by Cuyahoga Falls Veterinary Clinic.
Note: 1. Cat Owner's Home Veterinary Handbook 195-196 ISBN 978-0-470-09530-0