I have a friend that's Poodle got cataracts. She was 10 at the time. Her name is Buttons.
They decided to pay for the surgery (and drops for the rest of Buttons life) because Buttons is still a very active dog for her age and they had already noticed her having trouble seeing and lowered activity level. The surgery was very expensive, though, and they have to put drops in her eyes every day.
Buttons came through the surgery fine and is now, 1.5 years later, back to her normal, very active, self...she's 12 now and acts much younger.
They decided to pay for the surgery (and drops for the rest of Buttons life) because Buttons is still a very active dog for her age and they had already noticed her having trouble seeing and lowered activity level. The surgery was very expensive, though, and they have to put drops in her eyes every day.
Buttons came through the surgery fine and is now, 1.5 years later, back to her normal, very active, self...she's 12 now and acts much younger.