Welcome, mosscaptor!

I hope that you can find some ways to work around the severe problems you've been having. You must have already found a few ways since you seem to have earned a Ph.D. and have a job teaching. Congratulations on achieving so much in spite of so many obstacles!

Not having peripheral vision, for instance, must be a serious problem. You describe yourself as going blind but let's hope that that isn't really happening.

I hope you'll find some helpful information here.