I'm 51 and have been down the road of trying to use bi and trifocals for handgun shooting for years. This, as sixgunner points out simply didn't work for him, it didn't work for me, and hasn't worked for anyone else I know.
If you primarily shoot at paper targets a pair of shooting glasses with a perscription set so that the front sight is in sharp focus will be a big help, provided that your eyes don't require so much correction that you simply can't see the target at all with the perscription ground so that the front sight is in really sharp focus! For shooting at paper, it doesn't matter that the target is not blurred, the front sight is what you need to see.
I purchased the first pair of glases specifically for shooting a while back and this made a significant difference for me, my scores with an air pistol on ISU targets jumped from an average in the 490X600 range to an average in the 550x600 range. I haven't shot this well in years.
Apertures come in two types, those mounted on the rear of the handgun, and those that mount on glasses(like the AHG or Merit), or on frames (like the Jaggi).
To my mind, the handgun mounted aperture, at its best, has a large hole, the so called "ghost ring sight". This doesn't much help with depth of field, which, after all, is the point you're looking for in using an aperture. In its favor, target acquisiton with sights like this is, however, quick.
The apertures mounted close to the eye are helpful if your vision isn't really poor. They do increase depth of field. The only drawback is that you may have to take/make a moment to get everything lined up if you're shooting in less than formal style. They are'nt always great for a snap shot on a running bunny.
I really don't like 'scopes on handguns. But if you're primarily a handgun hunter, and if your vision is too poor to allow you to see game over your front sight even with a pair of glasses having the lenses ground so that the front sight is sharp, I believe that a 'scope the most practical way to go. Handgun 'scope optics have been much improved in the past 10 years. As you can imagine, the big trouble with this is that handguns with mounted scopes just aren't as portable/useful as handguns without scopes.