My problem, wearing glasses with progressive lenses, is that the pin is sharp but the target is not in focus (at 40 yards). I tried using my contacts instead (which are for distance only). I can now see the target clearly, while the pin is somewhat fuzzy. The end result is, I can now put a slightly fuzzy pin on a target in focus. My groups at 40 yards are much better now. I'd rather see the kill zone of an animal in focus, with a slightly fuzzy pin, than the other way around.