Originally, sunglass near me also has a shelf life! How often does it change? What is the color of the lens particular about? Summer has arrived, and the fashionable and practical sunglasses near me now have become a must-have item for many people when traveling.

The reason why people replace sunglasses is mostly because they are broken, lost, or not fashionable enough. Do you know? Sunglasses also have a "shelf life", and if they exceed their expiration date, they can also cause damage to the eyes.

How often should sunglasses be changed? The more expensive sunglasses are, the better their sun protection effect is. Should I buy a dark or light color?

Let's take a look together, at those things about sunglasses! The sun protection ability of sunglasses is decreasing year by year. It is recommended to replace it every 2-3 years.

The basic material of the sunglasses lens itself can absorb a bit of ultraviolet radiation, and the coating of the sunglasses lens can also reflect some of the ultraviolet radiation. Many sunglasses also incorporate materials that absorb ultraviolet radiation into their lenses.

In this way, the vast majority of ultraviolet rays can be 'locked out' and no longer harm our eyes. But this protection is not permanent.

Because ultraviolet rays carry a high amount of energy, they can cause the material of sunglasses to age, reducing the ability of sunscreen components to absorb ultraviolet rays. The shiny coating on the outside of sunglasses is actually the result of metal vapor deposition, which may wear out, oxidize, and reduce the reflective ability. These will all compromise the UV resistance of sunglasses.