For Everyone Concerned With the Safety of Flight July – August 2002 For Pilots , Sunglasses Are Essential in Vision Protection

Sunglasses are intended to protect the eye from damage caused by exposure to wavelengths both within the visible spectrum and outside the visible spectrum. Effective sunglass lenses use a combination of darkness and wavelength filtering (color) to reduce brightness and glare and to protect eyes from damaging UVR. Various factors should be considered in assessing the effectiveness of sunglasses, including lens material, the color and darkness of the lens, frame design and the effectiveness of UVR protection provided by the sunglasses.