Try on the CX (5540) DEMO at your local EyeCare Associates location. These green designer eyeglasses from Silhouette are perfect for focusing at work or relaxing at home. Made from metal, these eyeglasses feature a design and can help you see clearly with prescription lenses. At EyeCare Associates, we can build a complete pair of Silhouette CX (5540) DEMO just for you, with custom lenses designed for your vision needs.