I just started str8 shaving a couple of weeks ago and wore my glasses the first couple of shaves. They kept getting in the way or when I turned my head the correct direction I needed in order to see I wasn't even looking out the lenses. As my vision is horrible without them I was fearful of not wearing my glasses. However, it was so much easier to shave without them. Ocasionally I'll turn the scales down if I need to get closer, but mostly I'm learning by feel.