We use a cellulose acetate lens to help with anti scratch and UV protection which is produced in Italy.
Ultraviolet A (UVA) is made up of wavelengths 320 to 400 nanometers (nm) in length.
Ultraviolet B (UVB) wavelengths are 280 to 320 nm.
Ultraviolet C (UVC) wavelengths are 100 to 280 nm.
Only UVA and UVB ultraviolet rays reach the earth's surface. The earth's atmosphere absorbs UVC wavelengths.
Our lens check has filtered in the 400 range. So it blocks out most of 99%-100% of UVA and UVB wavelengths. UVC wavelengths are 100% blocked out.