I had been getting by, but with the Garmin gps Christmas present I couldn't see anything while riding. I got the stickon ones, they are removable/ reuseable but you wouldn't want to do that on a ride by ride basis. But when you get new glasses you could switch them over. I am able to clearly see the computer now. They are a little bothersome at times when looking out, and my eyes seem a little more fatigued. Then again this is my first use of bifocals ... just reading glasses before. I probably should have trimed them down a little for cycling glasses to resolve my issues.

I got them at www.stickonbifocals.com $13.99 including shipping. That was the best price I found on internet including ebay. Didn't check local stores like WalMart/Target.