ScreenSpecs™ are equipped with innovative lenses that filter around 40% of HEV (High Energy Visible) blue light emitted from computers, smartphones, tablets and games devices. Helps to lessen problems that can be caused by prolonged exposure to blue light, such as headaches, eye-strain, blurred vision and - in the long term - vision problems such as cataracts and age-related macular degeneration. Trendy Retro unisex design. Ultra-thin polycarbonate lenses with high impact resistance and 100% UV protection Available as reading glasses or with non-prescription lenses. Lightweight, soft touch frame with spring hinges for maximum comfort. Provides a gentler daily experience in front of the screen, meeting the demands of a digital age!