Practice, practice, practice.
As we age, our eyes often are the first subsystem to make it harder to shoot well.
Presbyopia ( stiffening of the lens) makes it difficult to acquire a good front sight focus and a good target at the same tie ( actually, we never really could see both at the same time but when our lens were young, they changed focus quickly giving us the appearance of seeing both front sight and target clearly simultaneously).
Our distance script give us a good target but poor or sometimes nonexistent front sight, and our near script ( in the bottom of our spectacle lens) gives us a good front sight but fuzzy or in some cases, non existent target.
What to do?
LASER? Micro red dot mounted on the slide or frame?
Will your carry gun still holster? Can you activate and acquire a sight picture/target quickly with your new technology?
How’s about a set of spectacles that allows both? A set of lenses of which your sighting eye lens is cut for arms length times 2 (hyper focal length) and the off side lens cut for distance?
Now a days you can get a cheap pair of poly spectacles at a discount optical company with such lenses for under $100.
Try it. If you simply add .5 diopter to your shooting eye lens, you may find a solution- a great front sight and a good target-the brain can merge the two images quite well.
Some shooters have special lenses cut with dedicated script as above in the upper portion of their shooting eye lens, and a normal distance/bifocal in the off eye side.