The parents and full and half siblings of an affected dog should not be bred close on the pedigree that produced it and should be bred to mates that do not have a family history of iris coloboma. (ashgi.org)
Dogs with iris coloboma should not be bred. (ashgi.org)
Multiple iris colobomas gives his pupil an oval or askew appearance and potentially results in a bit of vision loss. (dogcare.dailypuppy.com)