Spex is an Optical/Eye Care chain that provides a range of optometric services to customers in the Chicagoland area. The Naperville location's services include eye examinations, contact lens fittings and eyewear styling; Spex features eyewear from such brands as Chanel, David Yurman, BCBG, Prada, Tom Ford and Revolution. The doctors at Spex can provide anti-reflective coatings to customers' lenses, and also offer silicone hydrogel contact lenses to select candidates, allowing them to wear their lenses for up to 30 days straight.