Glossary

Primary Lens Luxation (PLL) is a well-recognised, painful and blinding inherited eye condition that affects many breeds of dog. In affected dogs the zonular fibres which support the lens in the eye breakdown or disintegrate, causing the lens to fall into the wrong position within the eye. If the lens falls into the anterior chamber of the eye glaucoma and loss of vision can quickly result. The disease is caused by a single recessive mutation.

Source of DNA Test: http://www.thekennelclub.org.uk/download/8288/dnatestsworldwide.pdf