What is a unique feature of Golden Retriever pigmentary uveitis?

A unique feature of Golden Retriever pigmentary uveitis is the development of adhesions between the iris and lens, known as synechiae. This condition specifically refers to the abnormal attachment that can form due to inflammation in the uvea, which is particularly relevant in cases of pigmentary uveitis affecting Golden Retrievers. The presence of these adhesions can lead to complications such as glaucoma and cataract formation, affecting the overall health of the eye.

The other choices present features that are not unique or characteristic of this condition in Golden Retrievers. For instance, while cataracts may occur in some cases of uveitis, they are not a definitive or always-present feature of pigmentary uveitis in these dogs. Similarly, Uveitis might progress rapidly in some cases, but it does not consistently do so in all young dogs. Lastly, this type of uveitis is primarily considered idiopathic rather than being caused by bacterial infections, making the assertion of a bacterial cause less applicable. Therefore, the formation of adhesions between the iris and lens stands out as a defining characteristic of this condition.