Welcome, Margrete, good first posting. I think you guys did the right thing to have the cataracts removed. I know that made her much happier. Odd thing about this, I just did an "Answer Point" answer about cataracts and suggested the site: www.animaleyecenter.com . There's lots of interesting information about cataracts and other eye problems there.
My family recently had to put down our twelve year old dog and today would have been her 13th birthday. She contracted lymphoma, and it went wild just after diagnosis. She was our first family dog and was such a special pet. She was funny, protective, intelligent and snuggly. We all learned a lot from her and I try to keep on the happier times with her so I don't cry a lot. We had a lot of really good years with Lacey and I know you will always remember your Daisy with lots of love.