Yep. After 40 or so our elasticity in the eye sockets start to tighten up. Think of it as a tele-photo lense ( no, that's not a new model of a guitar). the eyes don't move that tiny fraction of a milimetre for reading, at first. It may get progrssively worse. I can still drive, walk see at a long distances but am hopeless in a supermarket and reading a book ( also this dang 14" laptop screen and typing). I think they call it macular degeneration ( although that's severe and leads to blindness). No doubt somebody out there can correct me if I'm wrong.