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Apr 22, 2017

UV rays can damage the cornea and retina, high-quality sunglasses can completely eliminate the ultraviolet radiation.

When the eyes receive too much light, it will naturally shrink the iris. Once the iris shrinks to the limit state, then people need to squint. If the light is still too much, such as snow reflected out of the sun, will damage the retina. High quality sunglasses can filter up to 97% of the eye light to avoid harm.

Some surfaces, such as the water, can reflect large amounts of light, and the resulting bright spots can disturb the line of sight or hide the object. High-quality sunglasses can use polarized technology to completely eliminate such glare, we will introduce polarized technology later on.

Some of the frequency of light will blur the line of sight, while other frequencies of light can enhance the contrast. Choose the correct color for the sunglasses, giving it a better effect in a particular environment.

If the sunglasses do not provide UV protection, it will expose you more to ultraviolet light. Cheap sunglasses filter out part of the light, causing your iris to open to receive more light. This will also allow more UV to enter, increasing the damage caused by ultraviolet rays on the retina.

Therefore, there is indeed a difference between the various sunglasses. For the specific use of the environment, select the appropriate, high quality sunglasses will provide you with the greatest protection.

In accordance with the provisions of international standards, sunglasses are classified as personal eye protection supplies category. The main function of sunglasses is to block the glare of the sun. However, the international standard and sunglasses subdivided into "fashion mirror" and "general use with a mirror." The standard "fashion mirror" quality requirements are relatively low. Because "fashion mirror" is the main highlight of the style, the wearer is focused on decoration, rather than protection. Standard for the "general use of the mirror with the quality requirements are more stringent, including anti-ultraviolet, as well as diopter and prism of the indicators.