Learn more about extra eyelashes in dogs

Distichiasis or Ectopic Cilia are one or several hairs that grow abnormally through the conjunctiva (the pink part of the eye) and come into contact with the surface of the eye (cornea). The offending hairs rub against the cornea, often causing intense pain and corneal ulcers. 

The exact cause of this condition is unknown, but it is thought to be inherited. Breeds more commonly affected include the American Cocker Spaniel, Cavalier King Charles Spaniel, Shih Tzu, Lhasa Apso, Dachshund, Shetland Sheepdog, Golden Retriever, Chesapeake Retriever, Bulldog, Boston Terrier, Pug, Boxer, and Pekingese.  




Written by Dr. Mariella Roberts, Veterinary Surgeon, Animal Trust Vets CIC | Published June 2025 | Review date June 2027 | This advice is for UK pets only and is not a replacement for seeing a vet