Whether corrective or decorative, all contact lenses are classified as medical devices by the U.S. Food and Drug Administration (FDA), and that means they require a prescription from an eye doctor before touching your eyes. Likewise, it means those knock-off, costume contact lenses packaged next to lottery tickets at the convenience store aren't only of questionable legality, but they also could be dangerous...

Follow these tips to clean your eyeglass lenses and frames without risk of scratching the lenses or causing other damage. These same tips apply for cleaning sunglasses, safety glasses and sports eyewear...