Hello,
I've been working on my balance problems for awhile and have seen a lot of improvement, but I still can't function in the dark.
About a month ago the power went out in my neighborhood. It was late and I was walking through the living room when it happened. Suddenly my legs stopped moving, and I felt unsteady. Somehow I ended up on my hands and knees. I didn't fall exactly, but I felt a lot safer on the floor so that was okay. But I didn't know what direction was facing, and I was feeling increasingly dizzy and nauseous. Trying to move made it worse. I eventually figured it out and got to a flashlight (which I have in each room for that purpose). Then the power came back on...of course!
First of all, your wife is very lucky that she has you to help her. Secondly, if your wife is interested, she may want to try a vestibular therapist. I suspect some doctors underrate the value of physical therapy for balance problems, but there are a lot of success stories on this forum. In the meantime, night lights are a good idea. Flashlights too, if your area is prone to power outages like mine is.
I have a cane called a "pathlighter" too. It's a little awkward, but it lights up the ground ahead of me and there's something about having that extra touch on the ground that makes me feel more secure in the dark. I haven't quite got the hang of it, but it's definitely an improvement over a flashlight duct-taped to a walking stick.
Write again and let us know how things are going.
Betsy