Microphthalmia and the Cavalier King Charles Spaniel

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Microphthalmia in Cavaliers:

Genetically Caused, Abnormally Small Eyeball

CavalierHealth.org Copyright © 2004 Blenheim Company Microphthalmia is an inherited defect which is particularly common in the Cavalier King Charles Spaniel. One or both of the dog's eyes is smaller than normal, resulting in restricted vision and possible blindness.

There is no treatment for microphthalmia.

All CKCSs should be examined at least annually by a board certified veterinary ophthalmologist. They are listed on this webpage of the American College of Veterinary Ophthalmologists website, www.acvo.org/locate.htm

Breeders' Responsibilities

The Genetics Committee of the ACVO recommends that CKCSs affected with microphthalmia not be bred. The Canine Inherited Disorders Database also recommends that Cavaliers suffering from microphthalmia not be bred, nor should the dog's parents and any of its siblings. All Cavalier King Charles Spaniel breeding stock should be examined by board certified veterinary ophthalmologists and cleared by the veterinarians for microphthalmia.