Good eyesight doesn’t come cheap—and contact lenses are a perfect example. They rarely feel ‘used up’ when their official replacement date arrives. Maybe you’ve stretched a daily lens into three days, or worn your monthly pair for an extra couple of weeks. If nothing felt wrong, it’s natural to wonder: are we simply being nudged into buying new ones more often than necessary? Could this be a subtle case of planned obsolescence?
Or is there more to the story?