I have had a completely blind and a one eyed parrot and I agree with what mom2rain writes. If you leave things in the same spot or move them only a little bit at a time your bird will learn the layout of his environment perfectly.
You may not have to announce yourself as your birds hearing is so good he will know when you’re coming. But it’s polite to say hi and may help reassure him.
My blind conure, Magoo, was very quiet and got scared if there were any strange voices in the house, especially men. I am pretty sure someone hit him as his irises were no longer round and his beak was broken.
He was very scared and frantic at first but he quickly got to know me and became the cuddliest of birds. He also really liked soft snuggly toys to rub his face on. He had a ring of cotton (looked like mop strings) that he loved to sleep in and cuddle with.
I would hand feed him soft foods because I could put them right into his beak and also he needed the extra love.
He passed in a gas leak about 15 years ago, along with my bronze winged Pionus, saving my life and my Quaker parakeet (whose cage was higher up).