As dogs go up in age, sometimes we see a whiteness in the middle of their eye.

Cataracts is a condition where normally clear lens is filled up with white pigment. This can be due to age or sometime disease as diabetes in dogs.

Cataracs also occurs in people and other animals.
But as a vet, I commonly see it in older dogs .

Although there can be treatment options, there are usually little to no effective treatment when it gets very advanced. 

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