Oko by Oko Paris presented the prototype of a prescription frame with integrated computer memory at a European interactive product distribution show in Monte Carlo last month. Called the Key, the frame features one or two USB sticks, developed by Verbatim, that are inserted in one or both of the temples. Available in different colors and with three different memory capacities, the USB sticks have a practical as well as a decorative function. The new limited-series Key collection will be offered to the optical retail trade in various models in acetate and metal at the Silmo fair in Paris at the end of September. A few years ago, Marchon put out a model of eyewear with an integrated USB stick as part of its Calvin Klein collection, but it was a pair of sunglasses that the user had to take off the face and disassemble. In this case, the user continues to wear his or her glasses to look at the computer screen and other purposes while the USB stick does its job.