As I am nearing 80 my eyesight isn’t what it used to be. I can no longer focus on my iron sights and my target. Up close I can sight down the pistol and keep a relatively decent pattern. This year I added optics to my 9mm and ,45 (both Sig pistols). It made a huge difference. In addition I added a laser to my nightstand revolver and since it will probably only get “used” at night I don’t have to worry about a night sight picture. It does take a little work to sight the optics in but in ,y opinion it was worth it.