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Ophthalmologic

This is a Eyes condition.

Primary Lens Luxation

What is PLL?

This surgically correctable condition causes the lens to spontaneously detach from its normal residence within the pupil, leading to reduced visual acuity and irritation to the surrounding tissues. The lens is suspended within the pupil by numerous small fibers that stretch between it and a ring of muscle within the iris (which allows your pupil to dilate and shrink to accommodate light). If these fibers rupture, the lens essentially falls out of the pupil. 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. Please note that while Embark tests for PLL, which has a known genetic basis, secondary lens luxation can be caused by a number of conditions including trauma, glaucoma, or certain metabolic diseases.

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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