According to Prevent Blindness America, each year more than 700,000 Americans injure their eyes at work, and another 125,000 injure their eyes at home. More than 40,000 American children and adults suffer eye injuries during sports, while many thousands more eye injuries go unreported. Whether you do occasional chores in your yard or daily construction work, you should never start your tasks without proper protection. Safety eyewear must conform to a higher standard of impact resistance than regular eyeglasses, which optical professionals sometimes call “dress eyewear.” Polycarbonate has less than half the weight of glass, so the eyewear is more comfortable. Polycarbonate lenses are also more impact-resistant than glass lenses. This higher standard applies to both the lenses and the frames of safety glasses, and therefore S59ND is desirable for certain activities that require safety eye wear. Sunglasses and Night Vision in one!

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