UV protection even on cloudy days
When it comes to UV protection, many people think of the sun initially. But ultraviolet light is present not just when the sun is shining - the intensity of UV light can be very high even on cloudy days. Whether visiting a café in autumn, during a summer excursion to a lake or skiing in winter, up to 95 percent of the harmful ultraviolet radiation can penetrate the cloud cover even in dreary weather and damage your eyes and skin.
Shade does not provide complete protection from ultraviolet light either, as 50% of UV radiation still gets through from reflected and scattered light.
This effect is amplified when swimming in the ocean, for example, as the water's surface reflects part of the ultraviolet light. We therefore recommend protecting your eyes and skin from the sun in every situation, whether in sunshine or cloudy weather. That means that not only glasses wearers but everyone should make sure that their eyes are well-protected from solar UV-A and UV-B radiation - either by wearing high-quality sunglasses with full UV protection or clear or tinted glasses with full UV protection. Both clear and tinted eyeglass lenses and sunglass lenses from ZEISS offer this comprehensive protection from UV-A and UV-B radiation tu to 400 nm1 - so you can enjoy bright sunshine and outdoor activities with no regrets. All clear and tinted eyeglass lenses and sunglass lenses from ZEISS are equipped with the UV filter, so there is no need to order it separately.
