Glasses are very important in all sports as a means of protecting the eyes. In cycling glasses stop the ingress of dust, dirt and insects. In winter they keep your face warmer and prevent eye infections. They also hide your pain from fellow riders! Quick Definitions
Dark lenses are for sunlight
Mirrored, or Laser, lenses are for very bright sunlight
Orange or Yellow lenses are light enhancing - ie they make dull days brighter and are great for early evenings, early mornings and most of our duller winter days
Clear lenses are for protection when the mud and dirt is flying
Rudy Project glasses which are marked as RX Compatible are capable of taking a prescription lens insert. Details in the spares and accessories page
Quick Tip: To stop glasses and goggles steaming up, polish a little washing up liquid onto the inside of the lenses