What's on our minds this season - can smart eyewear convey high IQ? When it comes to discreet Danish brand Lindberg, with its roster of stellar fans, we think it can and does. From Bill Gates to Rupert Murdoch, the world's business elite seems to see things more clearly with the help of these super light frames. Maybe that's why an increasing number of clients are buying vanity specs - glasses that do more to enhance their look rather than their eyesight.