Bears eyesight

Hi, my names sue and I'm fundraising for help with vet fees. My little dog Bear has lost his sight from cattaracts which have come on rapidly. I don't have insurance. The cost for surgery to give him sight again is around £7000. I've tried all charity's for assistance but none can help. My darling boy is not coping well with sudden blindness he's only 6 and has lots of life to live so if you can help, no matter how small Bear and I would be forever grateful ❤️