
My only experience was of a Yorkie who had cataracts later in life .the vet was happy to do the operation and felt it would be successful but cost was her owners issue.
Later as she list more and more sight her age and GA become her owners worry.
She .managed very well but my own feeling would have been if it's affordable and after chatting to a couple of vets I would have gone for it earlier rather than later
Human cataracts are regular done these days and very little in the way of problems after