It is recommended to give breeding and service dogs certified eye screening exams to ensure they are free from hereditary eye problems. (animaleyegroup.com)
They are prone to hereditary eye problems so ask your breeder if there is any history of eye problems in his dog's lineage. (dogs.animal-world.com)
The dog has a Normal Companion Animal Eye Registry (CAER) Exam performed annually, clearing the dog of hereditary eye problems by a board certified ophthalmologist. (toller.ca)