Ultraviolet Radiation and How Sunglasses Can Protect You from Its Harmful Effects
What is Ultraviolet Radiation?
Ultraviolet (UV) Radiation is electromagnetic radiation with a wavelength shorter than that of visible light, but longer than that of x-rays. Specifically, it’s radiation with wavelengths in the spectrum between 400nm and 100nm. The three types of UV radiation we’re concerned with regarding eye protection are UVA, UVB, and UVC, in order from longest to shortest wavelengths, respectively. While UV radiation is often referred to as UV light, that is technically incorrect because you cannot see UV rays with the naked eye.
How is UV Radiation dangerous to our eyes?
Ultraviolet radiation is dangerous to the human eye for several reasons.