Which is better, polarized or nonpolarized sunglasses? Since sunglasses can be distinguished between polarizers and nonpolarized, where should friends go when choosing sunglasses? People usually rely on adjusting the size of their pupils to regulate the flux of light when exposed to sunlight, and when the intensity of light exceeds the eye's ability to regulate it, it can cause harm to the human eye. So during summer outdoor activities, many people will wear a pair of sunglasses to reduce the damage to their eyes caused by strong light.

Generally speaking, for short-term outdoor activities, non polarized sunglasses can already hold your needs. And if you are driving, fishing, traveling, or skiing, Mom's website suggests that you can choose more powerful polarized sunglasses! Because polarizers have polarized properties, they make people's eyes less prone to fatigue during long-term activities under strong light, achieving the true function of protecting the eyes.

How to determine if sunglasses are polarized? There is no difference in appearance between polarized and nonpolarized sunglasses, so how should we determine whether sunglasses are polarized or not?

When determining whether sunglasses are polarizers, you can rotate them 45 ° clockwise and upwards. If the color of the lens changes at this time, and the color returns to normal after turning the sunglasses back to their original position, then it can be determined that this type of sunglasses is polarized. If no matter how it is rotated, the color change of the sunglasses cannot be seen, then it can be determined that this type of sunglasses is not polarized.