The Glen of Imaal Terrier is, on the whole, a robust and genetically sound breed — a legacy of centuries of hard, functional selection. Many Glens live active lives well into their teens, with a typical lifespan of around 12 to 15 years. As with any breed, and especially any numerically small one, informed owners and conscientious breeders play a decisive role in keeping the population healthy.
cord1-PRA: The Breed's Key Test
The best-known hereditary concern in the Glen is cord1-PRA (cone-rod dystrophy, a form of progressive retinal atrophy). It is an inherited eye condition that can lead to gradual vision loss. The good news is that a reliable DNA test is available, and it is a simple, recessive trait: by testing breeding stock and pairing responsibly, breeders can avoid producing affected dogs entirely. Reputable breeders test, share results openly, and are happy to discuss them. Organisations such as the Orthopedic Foundation for Animals maintain health databases where results can be recorded.
Other Considerations
Beyond the eyes, the Glen has relatively few widespread problems, but sensible screening is still wise. Hip evaluation is worthwhile in a heavy-boned, low-set breed, and owners should keep an eye on weight: a Glen is meant to be muscular and substantial, not fat, and excess weight strains any long-backed dog's joints and spine. Routine preventive care — vaccination as advised by your veterinarian, parasite control, dental hygiene and regular check-ups — covers the rest.
Everyday Health at Home
Much of a Glen's long-term health is in the owner's hands. Feed a good-quality, appropriately portioned diet; keep the dog lean and well-muscled through regular moderate exercise; check ears, eyes, teeth and coat as part of grooming; and build a relationship with a veterinarian you trust. Because the Glen is stoic and undramatic, subtle changes in appetite, movement or eyesight are worth noting early.
Buying and Adopting Responsibly
If you are seeking a Glen puppy, choose a breeder who health-tests, rears pups in the home and asks you as many questions as you ask them. If you are open to an older dog, breed rescue and rehoming can be a wonderful route to a loyal companion. For breed-specific health guidance, national breed clubs such as the Glen of Imaal Terrier Club of America publish current recommendations. A healthy Glen starts with a well-chosen one.