Ray-Ban Erika RB4171 has always been the perfect accessory for a stand out everyday look. Now available as part of the Everglasses collection, Erika Clear Blue Light brings you all-hours coverage as well as style. The non-prescription clear lenses eliminate glare, provide 100% UV protection, and feature a blue light filter desigend to increase visual comfort in all light conditions - including digital environments. Eye size: 54; Frame: Tortoise/Gunmetal; Lens: Clear with Blue-Light Filter; Lens Material: Crystal Glass