I've worn glasses almost all of my life, nearsighted. Once I got over 40 I needed a correction for reading as well like so many others.
On my shooting glasses I use a stick on diopter like this, pick the right magnification to get your front sight sharp. They stick to your glasses with a little water to apply. You can trim them, and move them around until you get it right for you.
https://www.amazon.com/s?k=stick-on+...sl_r4kkucfkz_b