My mother in law (92) was widowed many years ago and lost her eyesight to Macular Degeneration a few months later. She manages amazingly well.
She has an enormous TV and a flatbed scanner linked to it. She uses this to read the TV magazine or her post.
She has a person at the bank she goes to see to discuss her finances, plus my husband and his siblings are all joint signatories on her current account.
She's fortunate in that the bus stop is at the end of her garden so she can get into town. She came back once having found a new, really cheap, cafe where she was made most welcome. Turned out it was a soup kitchen for down and outs!
Her local Tesco superstore runs a courtesy pick-up bus round the villages so she can do her own shopping if she wants to. She asks at Customer Services and a member of staff takes her and her list round the store.
She has a couple of friends who still drive so they'll all go for a pub lunch and she'll pay for the driver's meal.
She's always kept a very positive attitude as she knew when it happened she would need help, and no-one would want to come if she complained.
We take her on holiday every year: she hadn't flown before she lost her sight but she's been all over since including several Caribbean cruises.
She goes on coach holidays with her friends, they like the "Turkey and Tinsel" weekends.
She needs her food cutting up and any bones removing before it's safe to eat. Either we do this or the staff will. She did try meals on wheels for a while.
There's lots of help available if you ask, and accept it.
My husband's currently considering getting her a Google Nest or Alexa to help her with the radio and general information.
Hope this helps, best wishes to your mum x