Why wear sunglasses in indoor velodromes? I've watched a fair amount of UCI world cup track racing in the past year, and I've noticed most cyclists are wearing sunglasses in indoor velodromes.  Sometimes they're aerodynamic visors, but more often they are just standard sport sunglasses.  Why do track cyclists wear them?
Track cyclists are travelling in excess of 30mph.  At that speed you need eyewear to protect from the 'wind'.