What to Know About Tinted Lenses

Tinted lenses are a popular choice for eyewear because they not only enhance the appearance of glasses or sunglasses in Portland, OR, but they also offer additional benefits such as glare reduction and improved visual acuity in certain environments. However, it’s important to know that not all tinted lenses provide the same level of protection. Here’s what you need to know about tinted lenses and UV rays.

What Are UV Rays?

UV radiation is a type of electromagnetic radiation that is emitted by the sun and can be harmful to the eyes and skin. There are three types of UV rays, UVA, UVB, and UVC. UVC is irrelevant as far as human dangers. UVB has a slightly longer wavelength and is responsible for sunburn and skin cancer. UVA has the longest wavelength, but it can still contribute to skin aging and cancer.

UV Protection and Tinted Lenses

Not all tinted lenses offer the same level of UV protection, and it’s important to choose a lens that blocks out as much UV radiation as possible. The amount of UV protection provided by a lens is typically indicated on the label or packaging. Look for a lens that blocks out at least 99% of UVA and UVB radiation.

Lens Coatings

There are also specialized lens coatings that can be applied to tinted lenses to provide additional UV protection. These coatings are usually transparent and don’t affect the appearance of the lens, but they can significantly increase the amount of UV protection provided by the lens. Some examples of these coatings include those that block out blue light, which has been shown to contribute to digital eye strain, and those that are polarized, which can reduce glare and improve visual acuity in certain environments. Note that the color of the lens doesn’t necessarily indicate the amount of UV protection provided. For example, a clear lens can provide just as much UV protection as a dark lens, as long as it has the appropriate coating.

Tinted lenses can be a stylish and functional choice for eyewear, but be sure to consult with your eye doctor in Portland, OR so you choose a lens that provides adequate UV protection. Contact us today to learn more.

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