As people get older, their eyesight starts to decline, and I'm no exception. I was considering bifocals or progressive lenses until I was contacted by TruFocals, a company that makes a new type of eyeglass with adjustable focus. It sounded interesting, so I sent them my prescription. A week later I got a pair of circular lensed John Lennon-ish spectacles. They have a little slider on the bridge that I can move with with my finger to change the focus. When the slider is to the right, I can see fine print, and when the slider is to the left I can drive and watch movies. With the slider in-between, I can get crystal clear vision at any distance. They work very well. If you aren't dissuaded by the $895 price tag, they might be just what you are looking for. Visit the TruFocals website for more information. Above: a video I made of the TruFocals in action. Learn more about how they work at the link below.
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. Come and hear Mark speak at the ALA conference in Chicago on July 1.