Rick3 I wish you the best.
How about a fixed power Like a weaver 15X, 24X or 36X. Check Ebay for used ones.
I discovered I too suffer from macular degeneration but at this time it's mainly in my left eye. Ii was my dominate eye but I always shot right handed. I am putting together 3 Savage rifles all LA .308, .223, 6MM BR. I spent money on 2 XLR stocks and a $600 Leupold and $600 Vortex both are 6.5 - 20. I should not have spent the money but I figure in a few years at my age, 72 now, my eyes will force me to stop shooting.
My doc has said as it gets worse he can inject the eye which will slow the process down but it's only good for less than a year. He also said it was expensive but did not talk dollars.
Good luck and good shooting