, I just noticed this question. I spoke to a friend who uses them. She said there is one pair for reading and another for distance. Also that you definitely need to try them out before buying. The reading ones didn’t work for her at all, but the distance ones were a life-saver at a conference. She was able to see the stage and what was on the screen. There is a wheel to adjust the focus. Cora Lyn, MacularDegeneration.net Team Member