Unfortunately I'm right there with the rest of you. I started noticing my eyes starting to change about two years ago when I hit 45. I'm still able to shoot irons ok, but it's getting tougher. Aperture (peep) sights definitely make it easier.
Just like everything else, I think practice helps a bunch. Even though we struggle with the clarity of the sight picture and target image, practice and repetition allows us to develop a familiarity and reflex "memory" of the desired picture and aids in the "acquisition" of that picture. At a bare minimum regular practice with the irons keeps our limitations in clear focus
![Smile :) :)](https://cdn.jsdelivr.net/gh/twitter/twemoji@14.0.2/assets/72x72/1f642.png)
Familiarity brings confidence, confidence in our abilities and limitations makes us better shooters and hunters. Until I just plain cannot use iron sights, I'm going to fight tooth and nail and keep practicing with them.
Here's how I've decided to look at it. As I get older I have to work harder to maintain my skills and the ability to do the things I love. In a lot of ways that just sucks, but there is an upside
![Wink ;) ;)](https://cdn.jsdelivr.net/gh/twitter/twemoji@14.0.2/assets/72x72/1f609.png)
It means that I need to spend more time at the range, more time hiking in the hills to stay in shape and more time hunting!
![Big Grin :D :D](https://cdn.jsdelivr.net/gh/twitter/twemoji@14.0.2/assets/72x72/1f600.png)
In addition to range time, dry fire practice always pays dividends. Put on a good hunting video, grab your weapon of choice and practice mounting the gun and acquiring the target. Shooting sticks can be added if practice with them is needed too.
Nothing wrong with practicing with an open sight .22 either. Or something other than that big bore that's so expensive to shoot! A bolt action .22 is one of the best practice tools there is.
Also, offhand shooting is an acquired skill and one that is extremely perishable. Standing up and shooting offhand is one of the best ways to be a better shooter all the way around, but too few people do it with regularity. Me included! Kill two birds with one stone and practice irons and offhand shooting together.
Don't give up on the irons! I have a friend in his 70's that's still shooting open sights and cussing his old eyeballs. His vision isn't great but he continues to school me with enough regularity that I question just how bad his vision really is! I think he just likes to be able to rub my face in it and tell me even a blind man can shoot better than me
![Thumbs Down (n) (n)](https://cdn.jsdelivr.net/gh/twitter/twemoji@14.0.2/assets/72x72/1f44e.png)
Jerk
To quote Velo Dog. Stay on that front sight!
![Big Grin :D :D](https://cdn.jsdelivr.net/gh/twitter/twemoji@14.0.2/assets/72x72/1f600.png)