Old folks have issues with seeing near and far at the same time. Truth is, none of us can do this, but young ones simply rapidly move their focus between the two distances. So, seeing those front sights becomes a real issue. The ideal solution is to use a lens on the strong side eye that allows you to see your front sights, but it helps to have readily visible front sights. Voila.. a good fiber optic sight is a welcome sight.. pun intended. Shot my first night shoot with my fiber optic gun. I discovered that without my flashlight, I couldn't see the target. In slightly greater illumination I could see the outlines of the target and of my sights. So, the flashlight is a must in order to I.D. the target, but it wasn't clear to me that I should have brought one of my guns with night sights. Now, during anything but no moon, the fiber optics seem to be somewhat to very visible. During the day, or dusk they are great. I'm beginning to think that the fiber optics are a better all around front sight. Nights on the back might be a plus. Why night sights?