In the early part of my return to serious riding, I had one of those LED type lights on the front of my bike and was riding at night. This was making a late-night cut through the parking lot of one of those sprawling strip type malls (grocery store, liquor store, movie rental store, that sort of thing). Like the OP, I was enjoying the wide-open flat and smooth blacktop. My headlight offered plenty of light by which to navigate but not nearly enough to light up potholes or speed bumps.
My grip on the bars was quite relaxed when I hit that doggone speed bump. I nearly lost it.
Another problem I have is my polarized shades on a sunny day. I find that the polarization tends to darken light spots on the pavement so that holes do not always show up in time for me to notice them.
Yet another problem is watery eyes on swift descents. In that situation, I can see plenty well enough to stay on the road and to avoid traffic hazzards, but, I cannot see well enough to avoid pot holes, etc.
I wear glasses, but they don't seem to help.