Yeah, it is much more difficult for an older cat to adjust to losing it’s sight. We’ve been down that path before, with a 17 yr old we had. She could find her way up onto things, such as a bed or chair, to take a nap, but would meow for assistance getting down, because she was unsure how far of a jump down it was.
Our two blind cats now, have been blind since shortly after birth, as kittens. Victims of Feline Herpes. My daughter is the vet tech and could explain it better, but their eyes can literally burst from it, if it’s not caught & treated quickly, after birth. They contract it from the mother, during birth.
Ours both went through surgery, to have their eyes removed, as young kittens. They were both feral strays that were found wandering by people, and brought into the hospital where my daughter works. Unfortunately, blind kittens aren’t high on people’s list, when it comes to adoption. They are usually euthanized for that reason. In the case of ours, they were otherwise healthy. Both times, my daughter made a deal with the doctor. She would adopt them, if the doctor did the surgery on the house. Vets are animal lovers too, so both times the doctors agreed, and did the surgeries free of charge.
Being blind virtually from the start, they don’t know any difference. Once they get the lay of the land, it’s full speed ahead. They don’t think twice about launching them selves off of a window sill, entertainment center, cat tree perch, top of a chair, etc. It’s business as usual for them. We do try and keep furniture re-arranging to a minimum, though…lol.