I just thought of this---I should have posted this before.
As I have gotten older my eyesight has suffered and I now have to wear bifocals.
That has presented a problem for me when shooting any long gun without a scope. While almost all of my guns have scopes on them (even one pistol) I still have two long guns that I shoot regularly that do not.
One is a pump slug gun the other is a 22 bolt action with a tubular magazine.
The slug gun did have a scope on it but that was a bad joke and I took it off. The regular iron sights didn't work since I could not focus on the rear sight.
I changed to sights that have fiber optic dots. One on the front sight and one each side of the groove on the rear. I can see the dots
The other is my 22---it is old, not pretty but dependable---a lot like me
It has a Lyman peep sight on it---a thing of the past---but it works perfectly since all I have to do is look through the peephole---no focus needed.
I could not count all the squirrels that old friend has sent to the pot or pie. (only one today---it was a slow day)
It is perfect out to about 70 yards---then the front sight begins to cover a squirrel---and it just gets worse from there on out.
So---if iron sights are giving you a problem---think about some older "technology"