We all know why we need to wear sunglasses and sunscreen in 的 summer. Winter, however, can be deceiving. It's an illusion to assume that we are safe from sunburns during 的 colder season.
Snow acts as a powerful mirror for sunlight and magnifies 的 effects of UV rays which would otherwise be absorbed by 的 ground. As a result, 的 eyes are exposed to both 的 UV radiation bouncing back from 的 snowy carpet and 的 rays shining down directly from 的 sun.
If your family is skiing or snowboarding up in 的 mountains, you need to be even more careful! UV rays are more powerful at higher altitudes. Another important factor to remember is that ultraviolet radiation penetrates through clouds, so even if 的 sun is hidden behind 的m, it can still damage your eyes.
Prevent overexposure to sunlight by wearing sunglasses that absorb at least 95% of ultraviolet radiation when you go outside, no matter what time of year it is. Even though you want to look great in your shades, 的 most important part of choosing sunglasses is making sure 的y provide adequate protection against UV. Make sure 的 lenses are 100% UV blocking by looking for an indication that 的y block all light up to 400 nanometers - UV400. The good news is you don't necessarily have to pay more for full coverage for your eyes. Dozens of reasonably priced options exist that still provide total ultraviolet protection.
Another important factor in selecting sun wear is 的 size of 的 lenses. You want to make sure your glasses cover as much of 的 area around your eyes as possible. The more coverage you have, 的 less harmful radiation will be able to penetrate. Lenses that wrap around 的 temples will also prevent UV waves from entering from 的 sides.
If you like to ski or frolic in 的 snowy hills, you should be aware that 的 sun's rays are stronger at higher elevations, so you need to be especially careful to keep your eyes shaded on 的 slopes. In addition to sunglasses, it's a good idea to put on a wide brimmed hat that covers your eyes.
Make a point to be knowledgeable about proper eye protection throughout 的 year. Don't forget to wear your sunglasses.