When I hit the 40s my eyes started going. I wear bifocals and have found that I do better with the no line lens. I have tried one contact to no luck. I have tried two contacts to no luck. I have tried the lined bifocals but the line bothered me especially when I was on the computer. I finally settled on the no line lens and that seems to work best for me. Glasses were very hard for me to become accustomed to.