Judy2, I have trouble with online catalogs too, too much light, going back and forth. So I mainly use paper catalogs. I too am isolated so I need to order from catalogs for things like bras and undies and nighties, but the shoes I get from catalogs just don't work, and I found that our local department store actually sells great shoes now!
I used to have much more trouble with "intersections" at stores than I do now, and I had classical agoraphobia at 3 distinct times in my life....could not go out in the open spaces at all. But I don't get that much any more...am I better than I was? Possibly. Eating Swank and resting up and wearing dark glasses--all the ploys have made it easier now for me to negotiate "open spaces". I could easily fall back into trouble if I was still working and dashing to the store and picking up a kid, and waiting in traffic with gaseous fumes blowing at me.