Rost495 is exactly right. I re- started irons shooting with match irons at 55, this time in the Palma venue and was able to make High Master LR with the .308 and 155s 2 years after my 1st 1000 yard shot. Not being intimidated and experimenting to find what works for you and your eyes will get it done.
I am fortunate enough to shoot with some of the country's best LR shooters here in Phoenix which is a huge help. I have pretty poor uncorrected vision, floaters etc. , but a good optometrist.
Give a try, it's a lot of fun.

PS: trifocals were suggested for me in my 40s.




Too close for irons, switching to scope...