This is one of those places where, even though I'm familiar with it, I have to be very careful. But I know I have to be careful. As far as the trains go, I take the trains every day. I'm going to end up in the wrong part of town. So I've had to learn what to look for, where to stand, and that is part of the process of learning your environment.
Low vision redefines every dimension of life.
Every thing you do is different. The other one is light, you have to have a lot of added light. And, of course, that's provided by the machine or around the desk. You have to have added light. And the other one is contrast.