You look at the target, but without focusing your vision on it - it is locked to the iron sights. So the target, which is black bulls eye, is always blurry when

You look at the target, but without focusing your vision on it - it is locked to the iron sights. So the target, which is black bulls eye, is always blurry when shooting. Increasing depth of field as described in the article, would be beneficial. No idea if prescription glasses would help for someone with no vision issues.