I too have progressive bifocals. Moving my head around trying to find the best sight definition spot du jour in them was merely annoying at the range. In the field or in IDPA-type competition you can't do it and expect to come home pleased with your results. The real p----r is that once you've gotten yourself into the habit it's darned hard to break.
For me, the most practical all-around option has been fiber optic front sights. For bullseye target shooting and the like at a range the 'special glasses' and Mert attachment options are fine. But I don't see much real value in spending a lot of time or ammo practicing with a gimmick that isn't likely to be there if and when I'm actually engaged in the situation(s) that I'm trying to build the skill sets to perform successfully in.
I'm not a dyed-in-the-wool Luddite, but I will admit to being uncomfortable with developing too much reliance or dependence on relatively complex doodads when it comes to the prospective safety and health of my Personal Favorite Behind. Add batteries to the equation and I'm liking it even less.
Hunting is a slightly different matter to me, as I don't live where there's much in the way dangerous four-legged predators, very seldom venture into areas where they might be an issue, and never go looking for them. If my scope, red dot or whatever happens to crap-out on me there, about the worst result would be that I lost some time and money and have to rely on Kroger's for my entrees.
In the interests of keeping everything as simple and uniform as possible for myself, all of my most-used hunting and general purpose rifles and carbines have FO front sights. The scoped ones have a rear 'iron' back-up of some sort attached and zeroed, just in case. So far just the improved definition and faster acquisition of the FO's have made enough difference to allow me to enjoy a reasonable average of success on small game and deer by itself. As my Geezerhood advances things might changes. I hope not too much.
But on my SD/HD/CCW arms there're only FO and/or tritium. I spent many years training with the 'traditional' setup. I'm used to it and I've gotten fairly adept with it. So far the new-fangled glowy things have been enough to keep the arrangement viable and working for me.