Gene, we do all deteriorate with age -- physically, that is, othewise we're getting better and better! But the wonders of modern technology can address some of that deterioration. Is it possible for your eyesight to be improved?
Without that technology I'd be effectively blind today, and wishing for some way to still enjoy photography. And reading, driving, TV, etc. I now have had cataracts removed from both eyes, three years apart. They even fixed it so that I don't really need glasses to drive, read, use the computer, or use a camera.
I did get that Fuji GA645Wi last year to check how I'd like auto-focus, and auto-everything-else too. Interesting experience, and at the time my left eye wasn't much use... and I'm left-eyed!
Amazing stuff, technology; maybe it could help your eyesight?