You said you were old, but not how old.
You might ask an eye doctor how likely it is that you might have to have cataract surgery at some point in the future. As with some of the responses above, my own experience, and everyone else who I know who has had cataract surgery, it was the best thing that ever happened to their eyes. I know that they can do a better job with cataract surgery if you have never had lasik. They do everything internally, by building a new lens that corrects your vision better than lasik can. Some people who don't have cataracts choose to have what amounts to cataract surgery anyway just to get it done in one and not have to worry about it anymore.
So if you can shoot with glasses, I would go that route for now. Personally, I wore contacts for years before I got the cataract surgery, and never really liked them because I have sensitive eyes and they always felt like they had grit in them. The only time I really appreciated contacts is when I went duck hunting in the rain; eyelids make great built-in windshield wipers!