Eye on the price

Ever noticed the accessories sported by road racer Samuel Sanchez, skeet shooter Chiara Cainer and triathlete Emma Snowsill, who all won gold medals at the Beijing Olympics?

Customized glasses were the secret weapon for all of them.

Snowsill's yellow Oakley eyewear, for instance, was designed specially for a perfect cranial fit, while the unique frame of Sanchez's glasses helped facilitate a cooling air flow for a cyclist who was sweating profusely under the scorching sun.