Eyeglasses correct vision, make people look more intelligent, and—when worn upside down—enable a dormant wad of gray matter in the brain to control the Hubble Telescope. Unleash your satellite-wielding capacities with today's Groupon: for $99, you get $250 worth of eyewear from Wink Eyecare Boutique in Potomac.

A fully operational optometry practice, Wink's clinic combines state-of-the-art technology with a variety of funky and face-enhancing eyewear. Wink's resident eye expert, Dr. Rachel Cohn, and her staff can guide you to the perfect pair of specs based on your appearance, personal taste, and glare power. Pack up your eyesight records, grab a current prescription, and peruse the shop's selection of handpicked frames.

Customers can hold their eyes hostage in stylish frames from popular labels such as Juicy Couture ($225) and Nike ($199), an independent line known only as Intrigue ($219), and designer lines such as Barton Perreira, Anne et Valentin, and Robert Marc.