Those sections of the light spectrum can cause headaches, fatigued eyes, itchy eyes, and blurred lenses.
Ultraviolet rays, or UV rays, are found just beyond the violet section of the visible light spectrum.
Another good indicator is the "UV 400" marking, which indicates that the lenses protect from 400 nm -- the end of the visible light spectrum.
Ultraviolet (UV) radiation-A portion of the light spectrum with a wavelength just below that of visible light.
Infrared light is invisible to the human eye because it's beyond the region of the light spectrum that we can see.