If you're used to a progressive lens, you will definitely notice the line between no correction and the reading correction area, esp if you are using higher power reading like 2 or 2.5. But they are extremely nice, very comfortable, and for size, compare to Bausch and Lomb aviator model sunglasses in size large. So the reading is well down in a big lens and a slight adjustment of position on the bridge of your nose gets the reading portion down far enough not to distract when you're only trying See full review