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This is an eye condition.

Primary Lens Luxation

What is PLL?

PLL occurs when the lens spontaneously detaches from its normal residence within the pupil, leading to reduced visual acuity. Anterior lens luxation is when the lens falls forward and posterior lens luxation is when the lens falls backwards in the eye.

What are the signs & symptoms that develop in affected dogs?

You can visually appreciate the lens luxation by peeking in your dog's pupil: almost always, the dislodged lens can be seen as a clear half moon either in front of or in back of the iris. Your dog may also show signs of ocular irritation and pain.

When do signs and symptoms develop?

Signs of this disease typically first appear in adulthood (3-8 years on average).

How do vets diagnose this condition?

Your veterinarian will examine your dog’s eyes carefully and determine if it is an anterior or posterior luxation. They may run additional tests to check for secondary complications.

How is this condition treated?

Surgical correction by a veterinary ophthalmologist is necessary if the lens falls forward (anterior lens luxation). No treatment may be required except careful monitoring if the lens falls backward (posterior lens luxation).

What actions should I take if my dog is affected?

  • The best care you can provide your dog is seeking the expert opinion of your veterinarian for an accurate diagnosis and determining whether or not a specialty consult for surgery is required.
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