I don't even notice mine. I had ordered regular bifocals at first, and I got SO DEPRESSED! I couldn't imagine going thru life with this huge artificial line going across my field of vision! it was awful! it made the world so ugly! and I was just looking out at a parking lot! I took them back and got progressives. I worked at computers at the time, and never had a problem. I do have this weird thing where I still see better VERY close (4 inches from my nose) without glasses, but after that, it's glasses all the way.