• Sunglasses made by a New York City company called Pivothead have a built-in lens for capturing still images or HD video and a microphone.
• The glasses can store eight gigabytes of data and download it through a mini-USB port.
• The glasses also can be fitted with prescription lenses for the wearer and set in various focusing modes for capturing what thew wearer sees, making them appropriate for site visits.

From the article:

Elizabeth Cox walked the site of the Houston Dynamo stadium wearing new sunglasses her brother gave her. When she got back to the work trailer, she had a high-definition video of her site walk. ...