The standard applies to all afocal (plano power) products intended for direct observation of the Sun, such as solar eclipse viewing. This standard does not apply to: -afocal (plano power) sunglasses and clip-ons for general use intended for protection against solar radiation - eyewear for protection against radiation from artificial light sources, such as those used in solaria - eye protectors specifically intended for sports, for which separate standards are available (e.g. ski goggles or other types) - sunglasses that have been medically prescript for attenuating solar radiation