There are a number of factors to consider when buying a pair of sunglasses with adequate UV protection. Since there are so many differences between different products, here are a few things to consider when choosing a pair of well-functioning UV-protection sunglasses.

The purpose of sunglasses is to fight the harsh sun, so whether the product can effectively block UV rays can be said to be a prerequisite.

The UV shielding rate represents the rate at which the lens can block UV rays, generally expressed as a percentage. For example, when the UV shielding green rate is marked as 80%, it means that the lenses of the sunglasses can block 80% of the ultraviolet rays, so the higher the shielding rate value, the stronger the anti-ultraviolet function. At present, there are products on the market that can almost completely block UV rays, which can be given priority when purchasing.

The UV penetration rate is the opposite of the shielding rate, which represents the proportion of UV rays that can penetrate the lens. That is to say, if the product is marked with a penetration rate of 20%, it means that the lens can effectively block 80% of the UV rays. Therefore, the lower the value of the UV penetration rate, the stronger the shielding function.

UV is the abbreviation for ultraviolet, and the number behind it represents the wavelength. The wavelength of ultraviolet rays can be divided into three types: UV-A (315-400nm), UV-B (280-315nm), UV-C (200-280nm). If the product is marked with UV400, it means that it can block all wavelengths of ultraviolet rays to achieve truly effective protection.

When shopping for UV-protection sunglasses, you might think that darker lenses are better at blocking UV rays, but that's not the case. In dark places with insufficient light, the pupils of the eyes will dilate to capture more light sources.

Wearing sunglasses with dark lenses is equivalent to creating a similar situation, which in turn increases the absorption of ultraviolet rays by the eyes. Therefore, in addition to paying attention to the UV protection function of the lens itself when purchasing, it is also recommended to give priority to light-colored lenses.

Because ultraviolet rays are not only irradiated from a single direction, too small lenses cannot completely block and function, so choosing a style with large lenses is the safest to fight ultraviolet rays from all directions.

In addition, the difference in the shape of the frame also affects the overall impression. Choosing the right style with the large lens as the premise must also become part of the match.

Ultraviolet rays in summer are particularly strong, and sunglasses can be said to be an indispensable accessory. We should pay more attention to the performance of sunglasses when choosing. You can send us any needs you have, and we will provide you with a variety of sunglasses products and professional targeted services.

As an experienced manufacturer of optical frames and sunglasses, ZOHO has won praise and trust from many customers with our professional manufacturing technology and thoughtful after-sales service. In order to ensure the quality of our products, we have established a professional quality inspection system that can control the quality of our products in an all-round way. At the same time, we will also provide customized services according to the needs of users. If you are interested in our sunglasses, please contact us immediately!