I just recently got prescribed specs and as an upcoming nurse, you can't be asked to slug around a bulky glass case for the sake of infection control when your pockets are occupied with the handover sheet, your little note book, pen light etc etc etc. This comes in so handy. You hang it around your neck or or place the specs on top of you head (depending on what make you comfortable) and when your ready you just pop the specs onto your face :) Oh and let's not forget the lens cloth that we keep losing :( You don't need it :) Unravel the case and clean your lens and then pop it back onto your head or neck (again, depending on what makes you comfortable) or even... put your specs inside the case once you don't need them. Brilliant product :)