Protecting your visual health is always important, but if you do BTT, hiking or climbing, the protection must be greater, since there are more external factors that can damage the state of your eyes. Then we tell you why and how you should protect your eyes on the mountain.
Exposure to sunlight is highest on the mountain due to altitude. To give an example, for every 300 meters in height, the intensity of the radiation increases by five percent.
Of all the radiations that come from the sun, the most harmful is the ultraviolet (UV), so using sunglasses with filters applied to the lenses will reduce the radiation and prevent penetration into the eyes.
Be very careful with poor quality lenses, since their use can be more harmful than not using any type of protection. To ensure that we are buying quality glasses, we must verify that they have the European CE mark.
When you do outdoor sports, your eyes are exposed to many external factors, such as dust, wind or insects. Therefore, if you practice activities in contact with nature, it is best to protect your eyes with sunglasses to avoid accidents, as well as infections or other eye damage.
One thing is the protection against radiation and another before the light. Categories 0 to 4 of the European Regulation indicate the percentage of light that the lens passes.
If you practice hiking, mountain biking or mountain activities, you must make sure that the lenses of your glasses are of category 3. Those of category 4 are reserved for extreme sports such as high mountain, ski, mountaineering, etc.
Comfort and protection are the main requirements that sunglasses should have for outdoor sports. It is essential that the sunglasses that you choose adapt to the shape of your face and that they have a good grip.
The same happens with the sideburns, which have to adapt well to the ears so that they do not cause discomfort. The material for this type of glasses has to be flexible and very light to avoid chafing.
Also, it is important that they do not fog up, so they have to offer ventilation. And, of course, they must offer a good field of vision without obstructing the mount.
Polarized lenses avoid glare on clear days, especially if you are in places with water or snow. They also facilitate viewing in very bright environments because they have a filter to block the light that reaches horizontally, avoiding reflections.