Sunglasses with UV protection can block up to 99-100% of UV rays. UV radiation is classified into UVA, UVB, and UVC rays. While UVC is mostly absorbed by the Earth's atmosphere, UVA and UVB can cause significant damage to the eyes. The lenses in sunglasses are designed to filter out these harmful rays, reducing the risk of conditions such as cataracts and macular degeneration.
