The meaning of the word "luxate", is to become dislocated, or to move out of proper poisition. In the case of a luxating lens, the lens has become seperated from its holding aparatus, and is dislocated inside the eyeball.
Symptoms of a luxating lens can be unspecific and hard to distinguish from other conditions affecting the eye. In many cases irritation, increased tear-flow and keratitis are the only symptoms. The condition can be very painful to the dog.
The fibers that attach to the lens and hold it in place can become damaged through infection, intoxication or trauma. A genetic predisposition exists for certain breeds (i.e. terriers). Cataract and glaucoma can also contribute to the development of a luxating lens.
A luxating lens has to be treated as soon as possible to prevent further damage to other parts of the eye. A possible complication of the condition is a blockage of the draining channel for intraocular water, which leads to the development of glaucoma. The lens can be removed through a surgical procedure.
If a luxating lens is suspected, a veterinarian should be consulted as soon as possible.