The relationship between the color depth of sunglasses near me now lenses and their functions. The darker the color of the lenses, the more visible light they absorb, and the more prominent their function as sunglasses near me now to block sunlight.

Generally, dark-colored sunglasses can absorb over 75% of visible light, while some light-colored lenses may absorb less than 50% of visible light.

The color depth of the lens only affects the visible light absorption performance and is not related to the UV resistance, as UV is invisible light and the UV resistance depends on the lens material, not the color depth. The resin sheet is colorless and transparent, but still 100% UV resistant.

Some sunglasses near me now use progressive color resin lenses, with a depth of up and down until they are almost colorless. Wearing such sunglasses outdoors can block sunlight from the front and up, and can still be seen up close indoors or in the car. If light progressive colors are worn by middle-aged women, they will have a good decorative effect.

The harm of ultraviolet radiation to the human eye: UVA - can cause cataracts; UVB - can cause corneal diseases; UVC - Originally unable to reach Earth, but now due to environmental pollution and ozone layer destruction, UVC can reach Earth and harm humanity.

If sunglasses lenses do not have a UV protection function, they will not only fail to protect the eyes but also cause more serious harm because they deprive human eyes of self-protection ability.