Coloboma, iriscoloboma and irishypoplasia

Project description

Coloboma refers to a developmental eye disease in which a halo is seen in one or several parts of the eye (most often in the retina). Iriscoloboma and irishypoplasia are developmental abnormalities affecting the iris. Coloboma's efect on the dog's vision depends on the localisation and size of the defect.



Australian Shepherd, Schipperke, Shetland Sheepdog.

Samples from affected dogs in any breed are welcome.


Which samples are needed:

  • dogs that have been diagnosed with coloboma, iriscoloboma or irishypoplasia
  • close relatives (parents, siblings, offspring) of the affected dogs
  • healthy dogs over 6 years of age


Veterinary certificate copies requested from all eye examined dogs

  • veterinary ophthalmological certificates
  • other veterinary certificates



  1. How to participate.
  2. Health surveillance questionnaire.


Contact us:

Maria Kaukonen, DVM (

phone +358 (0) 29 4125678