VetGen - The leader in veterinary genetic disease research and genetic disease detection services for purebred animals

Breeds Serviced

    • Australian Cattle Dog
    • Australian Kelpie
    • Biewer
    • Border Collie
    • Bull Terrier - Miniature
    • Cesky
    • Chinese Crested
    • Jack/Parson Russell Terrier
    • Jagd Terrier
    • Lakeland Terrier
    • Lancashire Heeler
    • Norwich Terrier
    • Parson/Jack Russell Terrier
    • Patterdale Terrier
    • Pumi
    • Rat Terrier
    • Sealyham Terrier
    • Tenterfield Terrier
    • Tibetan Terrier
    • Toy Fox Terrier
    • Volpino Italiano
    • Welsh Terrier
    • Wirehaired Fox Terrier
    • Yorkshire Terrier

PLL - Primary Lens Luxation

Primary Lens Luxation (PLL) is an inherited condition that affects many breeds of dog. It is characterized my movement of the lens away from its normal location in the eye. This may result in blindness in affected adult dogs. A mutation has been identified by researchers at the Animal Health Trust which causes PLL. It is inherited as a recessive trait.


2 copies of the mutation and will likely develop PLL


1 copy of mutation. Most carriers do not develop PLL but a small percentage will, and so these dogs should be periodically checked by an opthamologist.


No copies of the mutation