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This depends on the degree of blindness and the cause. Often, many older dogs are functionally blind due to cataracts (a normal aging change in the lens of the eye that causes it to become cloudy). This can be treated by a veterinary ophthalmologist who can surgically remove the cloudy lens and replace it with a clear artificial lens. This is not cheap and takes significant post-operative care, but most dogs pull through the surgery well and can suddenly see clearly again.

Blindness due to glaucoma or retinal damage is permanent, as is blindness due to optic nerve damage or congenital defects.

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12y ago

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