People’s eyes are one of the most complicated organs in the body. Eyesight is arguably the most valuable sense. But individuals usually tend to take it for granted. When it comes to eyepieces, it is generally associated with luxury or lifestyle, even as a fashion statement.
However, this article is going to take a closer look at the crucial role that these things play in protecting the eyes. Ultraviolet rays, as people would have heard, are considered as one of the most common reasons for lens damage leading to eye problems like cataracts, as well as vision loss.
People have heard the term before, but only a handful know what they actually mean. UVs are rays that are not visible to the naked eye but can pass through the earth’s ozone layer and eventually lands on the body. These things are composed of three types of rays – Ultraviolet A, B, and C. Being exposed to these UV-A radiations for a long time can cause vision loss and cancer.
On the other hand, UV-B can cause skin sunburns, cataracts, or sensibility. The ozone layer absorbs UV-C. These radiations are usually encountered at high altitudes or sea levels. Ultraviolet-A contributes a lot of damage for people below 20 years old. Ages after that, the retina is protected partially but not the lens or cornea. That is why it is very important to protect kids’ eyes because the damage caused by these rays is permanent.
Click https://stanfordhealthcare.org/medical-conditions/cancer/skin-cancer/causes-skin-cancer/effects-uv-exposure.html to know more about the effects of UV radiation.
How are protective sunglasses made?
Manufacturers like Oakley add Ultraviolet blocking materials to their lenses. That makes these sunglasses 99% to 100% anti-Ultraviolet A and V. No matter the sports glasses, environment, or luminosity, users are protected from these rays.
Categories or luminosity
Categories of the eyepiece’s lens minimize the luminosity for better vision and comfort. These categories tie in with the percentage of the light that passes through the eye’s lens. Listed below are some of these categories.
Category 0 contains clear lenses. These sunglasses are designed to be used at night, in bad weather, or indoor sports. They allow 80% to 100% of light. Category 1 is usually tinted yellow and used in bad or foggy weather, as well as for sports held in the forest where the light is pretty low.
They help improve contrast and allow 40 to 80 percent of light. Category 2 is the best to use in changeable weather, altering between sunny and cloudy. It allows 18 to 43 percent of light. Category 3 is the most common type of lens. They are designed for activities in very bright conditions. These lenses are usually brown or grey.
They are suitable for activities under sunny weather and at lower altitudes. They let through 8 to 18 percent of visible light. Category 4 is pretty dark and designed for very bright and intense sunshine in places with high altitude. They let through between 0 to 8 percent of light.
There is so much dust around this subject. It is a technology that can stop the reflection from the floor to help enhance people’s comfort and vision. For example, individuals can see the rocks under shallow waters a lot clearer using eyepieces like Oakley glasses and polarized sunglasses.
Trekking on a snowy trail, drinking hot tea or coffee or visiting places with a lot of snow and ice. All of a sudden, your sunglasses are full of fog, and you cannot see anything. Now that is not an issue anymore. Thanks to the anti-fogging eyepieces. These things are designed with small windows for air to pass right through on its frame. They stop fog and moist from forming in lenses and keeps ventilation on.