One way to protect your eyes when doing outdoor activities is to use anti-UV glasses. However, many people are confused when looking for efficient glasses considering the various standards and differences in lens specifications.
This time, we will explain how to choose anti-UV glasses so that you can find a good product according to your needs. We also recommend products from various brands, such as Bitzen, Berry Barton. Let’s wear the right glasses and protect your eyes from
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When you want to protect your eyes from the hot sun, you might immediately think about wearing sunglasses. However, you must ensure that these glasses have protection against ultraviolet (UV) rays. UV radiation can not only cause damage to the skin in the eye area, but can also cause conjunctiva, especially cataracts.
Unlike anti-radiation glasses which can change color, most anti-UV glasses actually have dark colored lenses. However, not all of them can protect your eyes from UV rays. Several dark colored lens models that are currently popular are polarized and photochromic.
Polarized
This type has a special coating that can reduce glare. That way, light reflection is reduced, visual clarity increases, and your eyes don’t get tired easily when using it. However, not all glasses with polarized lenses can eliminate UV rays.
Photochromic
Photochromic lenses can eliminate UV rays so that your eyes are protected from their bad effects. Photochromic is designed to be able to regulate with ambient light. When exposed to sunlight, the lens automatically darkens. Meanwhile, the lens will become clear in areas with low light intensity so that the eyes can see clearly deposit 10 ribu
How to choose anti-UV glasses
After understanding the importance of wearing anti-UV glasses, you also have to understand how to choose them. Pay attention to the following points carefully to get a product that suits your tastes and needs.
1. Choose based on the number information listed
The most important thing in choosing glasses with high anti-UV performance is to look at the numerical values shown. However, the higher the performance, generally the higher the price. Therefore, make sure to adjust it to the budget you have prepared. Let’s see more about the information points listed on anti-UV glasses!
The UV-cut percentage is a number that shows the quantity of ultraviolet light that can be blocked by anti-UV glasses. For example, glasses with an 80% UV-cut can block 80% of UV rays from entering and touching the eyes.
The higher the UV-cut content, the higher its ability to eliminate incoming UV radiation. According to experts, it is best to choose glasses with a UV-cut of at least 95% for the best protection. Interestingly, currently many products with 100% UV-cut are also being sold on the market.
The term “ultraviolet transmittance” may be a little confusing because it seems as if UV rays are being transmitted to the eyes. However, ultraviolet transmittance actually shows how much UV light penetrates the eyeglass lenses. So, in contrast to UV-cut content, choose a low UV transmittance value.
If the UV transmittance value is low, the UV light entering the eye will also be low. For example, a product with a UV transmittance of 20% means it can remove approximately 80% of UV rays. Now, products with a UV transmittance of less than 0.1% are also available on the market. The following product certainly has a high ability to eliminate UV radiation.
The wavelengths of UV light are grouped into three types, namely UVA (315–400 nm), UVB (280–315 nm), and UVC (200–280 nm). Among the anti-UV glasses on the market, there are those that display the information “UV400”. This standard was first used in Australia where the intensity of ultraviolet light is high.
Anti-UV400 are glasses that can eliminate UV rays with wavelengths of up to 400 nm (nanometers). In other words, glasses that can remove up to 400 nm can be used for all types of UV light. Therefore, it would be better if you choose anti-UV glasses that have UV400 information.
2. Dark colored glasses
Or dark is often recognized as having better anti-UV capabilities. In fact, dark colors actually make the eyes absorb more ultraviolet light. Why is that? The reason is because the pupils have a mechanism to dilate when you wear glasses with dark lenses to absorb light.
As a result, ultraviolet rays enter the eyes more easily. Taking this mechanism into account, choose lenses with colors that are not too intense if you want to prioritize anti-UV benefits. However, if you prioritize the benefits of glasses to eliminate glare, choose glasses with dark lenses.
