The British weather has been treating us exceptionally well these past few weeks, but it’s not all sun and games. With increased sun exposure, comes increased risk of sun damage. In today’s post, we explain what these mean and how you can protect your eyes.
When the sun hits, it’s an exciting time of lounging outside, enjoying a cheeky ice cream or cranking up the AC. But aside from these fun bits, when the sun hits, so do some less welcome things: UVA, UVB and UVC. Though we’re used to hearing about how applying (and reapplying) sunscreen will protect our skin, what about our eyes? We’ve all heard of them, but what exactly are they and how to do they affect us? Read on to find out more.
UV stands for Ultra Violet and relates to the three main rays that come from the sun. UVA, UVB and UVC are different rays present in sunlight. While UVC rays don’t make it through the earth’s surface, UVA and UVB rays do. UVC is the most dangerous, followed by UVA and then lastly UVB. Here’s a quick explanation:
UVA rays have a long wavelength and are the longest of the three rays. Known to penetrate the skin more deeply, these rays are able to pass through glass and clouds, and are responsible for tanning! Fun fact, about 50% off their power is absorbed by our ozone layer.
UVB rays have a shorter wavelength. Unlike UVA rays that pass through the skin’s dermis, these rays only hit the skin’s surface aka the epidermis (which explains the sunburn), and are a main contributor to the development of skin cancer. Unlike UVA rays does not pass through glass, and the ozone absorbs about 90% of these rays.
UVC rays have the shortest wavelength and are ranked with the highest energy, making it the most dangerous of the three. It is most harmful to eyes and skin. However, about 99% of these rays are absorbed by our ozone, so there’s less to worry about.
How to protect?
Protect your eyes from UV rays by upgrading your glasses with our great value Gold and Platinum lens packages. Their UV400 coating helps block harmful light rays. Additionally, remember to always wear your sunglasses even when it’s cloudy. Thanks to their coloured lenses sunglasses help to block a considerable amount of UV and VLT (visible light transmission), without distorting your image.
Why not turn your frames into prescription sunglasses by adding any one of our dark sunglasses tints options. Choose from dark sunglass tints, graduated sunglass tints or polarised sunglass tints. For more details on the advantages of polarised lenses, check out our recent post.
For more information on the dangers of UVA and UVB rays, check out The Skin Cancer Foundation’s detailed post here.