I can't see irons either and couldn't afford new glasses with corrective lenses needed.
So last Friday I stopped at a store in Lincoln, NE called Eye Care Specialties that has all the cool Rudy's/Decots/Wileyx's etc...
I was getting depressed counting the hundreds of dollars needed to get what I needed
To make a long story short, they are taking my Oakley Half Jackets and making glasses I can shoot iron sites again.
FM