When I was a young man, (I’ll be 69 soon) a half century ago, my vision was 20/10 in each eye. I recently had Cataract surgery. I opted for a lens called a LAL. Light Adjustable Lens. Pricey devils. 8K to be exact. My vision in my dominant eye (left) is now 20/15. My right eye lens was adjusted for reading and is 20/20. I can see the fiber in the paper WITHOUT GLASSES! I’ve been scoping guns because I just couldn’t see the front sight clearly any longer. Not now. Another reason to keep the iron sights option open when deciding on a particular model. These three pumpers went from this-to-this today. And more to come!