Where can I buy Gazelle eyeglasses that are prescription?

Like, the type that Andrew Garcia has here a href="http://i.rickey.org/wp-content/uploads/2010/01/Andrew-Garcia-Audition-Sunday-Morning-01-2010-01-26.jpg" rel="nofollow"http://i.rickey.org/wp-content/uploads/2…/a I can't find them with prescription lenses