Sorry to hear that. It sucks that just when you have acquired enough wisdom to truly appreciate what your senses have to offer, they start fading.
Coincidentally, the same day you posted this, I read about an "audio-only" computer game called
Blindside.
"You play as Case, an assistant professor who wakes up blind, to find his city destroyed and mysterious creatures devouring people. Will you and your girlfriend be able to find your way without sight? How will you escape? Run for your life, navigate the darkness, and uncover the mystery of the apocalypse--all in the dark!"
Other than an opening splash screen and a few menus, there are no graphics at all. It's all done through sound design.
I also read that there was one negative review. A fully-sighted player said it was "too scary"....