Safety glasses and protective eyewear protects the eyes from liquids and flying debris. Clear lenses do not filter light, making them a good choice for wearing indoors or when moving between lighting conditions. Dark lenses reduce light, glare, and eye strain when working outdoors or in bright light. Amber (or yellow) lenses filter haze and blue light to improve contrast in low-light conditions. Green lenses filter infrared light created while welding. Readers have built-in magnification to make reading, inspection, and fine detail work easier. OTG (over-the-glasses) frames fit over most prescription eyewear, allowing workers to wear personal eyewear.