At age 65, I don' see too well without help, but don't risk your life upon it because I was trained in the foundations of shooting.
I'm 63 and I've needed reading glasses since my mid 50's. This was problematic with conventional rifle sights. I could wear glasses and focus on the sights. I could not wear glasses and focus on my target. I could not do both. Peep sights were better, but the front post is still pretty fuzzy.
My options were to put a long eye relief scope on everything or seek another solution.
I found that solution in a holographic reflex sight. I can use the red dot or the red crosshair. Beyond 50 yards, the dot is better as it obscures less of the target. I now have four rifles and one shotgun fitted with these optical sights. For distances beyond 100 yards a standard rifle scope is a better choice. My Remington is fitted with a Leupold, the Savage has a Nikon and the JW-15 (.22 LR) does well with a 4x 30mm Simmons. That 25 year-old JW-15 (Chinese knock-off of the CZ-455), is a genuine tack driver. On a windless day, at 100 yards, you can cover a 10 shot group with a nickel...
For shorter range shooting, the holographic is ideal for me. Because both eyes are open, my field of vision is normal, helping to acquire targets and spot motion. A great solution of home defense guns (carbine or shotgun). Dots and reticles are adjustable for brightness. Various manufacturers, but not very expensive for good quality sights. Even the $30 models work well enough for plinkers. Fits on Weaver bases, but Picatinny rails are best and are made for most long arms.

