I can see the front sight clearly -- without my glasses. But, without my glasses the target just sort of disappears. I can see the target clearly -- with my glasses. But, when I wear my glasses, the front sight turns into a fuzzy blur. That, despite several trips to the opthalmologist plus progressive lenses. My problem is compounded by the fact that I'm cross-dominant. I'm right handed but my dominant eye is my left eye. And, my left eye happens to have weaker distance vision than my right eye.
The consequence of all of these problems is that I am an accurate shot at distances up to 15 yards, so-so at 20, and not very good at 25.