The essential difference between polarized sunglasses and ordinary sunglasses is whether they can effectively block harmful light from the sun. Ordinary sunglasses, commonly known as sunglasses, use the color of the lens to reduce direct sunlight, which has a miraculous effect in reducing the intensity of ultraviolet light and the dizziness caused by strong sunlight. They are affordable and popular with many people.

polarized sunglasses add a metal powder filter device to the sunglasses, which can prevent UVB from entering the cornea, which cannot be absorbed, thereby achieving the effect of protecting the eyes. When sunlight strikes the eyes, the metal powder filter device will absorb UVB from the sunlight, which can reduce the damage caused. In addition to absorbing harmful sunlight, polarized sunglasses also use the principle of refraction to reflect harmful light from sunlight to other places. With the blessing of both methods, they can produce good protective effects.

When swimming outdoors, it is best to wear swimming goggles that have undergone UV protection treatment. Drivers and fishing enthusiasts are best advised to choose polarized sunglasses, as polarized lenses can eliminate glare from all directions and make objects look clearer. It is made of lightweight and precise synthetic resin like contact lenses and is composed of seven layers of thin sheets. The outermost two layers are super hard wear-resistant layers, and the middle layer is a polarizing filter layer.