Foster Grant® Solar Shield® Fits Over sunglasses are designed to wear over your glasses or alone. The fashionable square shape provides contemporary styling with no side windows. Their leopard-patterned frame with crystals accents offer a stylish look. Scratch-resistant, polarized lenses help reduce glare and provide 100% UVA-UVB protection. Foster Grant® Solar Shield® Fits Over Sunglasses are a practical, fashionable and affordable alternative to prescription sunglasses. They are specifically designed to fit over your prescription glasses or can be worn alone. Foster Grant® Solar Shield® Fits Over sunglasses are available in a variety of shapes and sizes. WEAR OVER EXISTING GLASSES POLARIZED LENSES REDUCE GLARE LENSES HELP FILTER POTENTIALLY HARMFUL BLUE LIGHT* SCRATCH-RESISTANT LENSES IMPACT-RESISTANT LENSES 100% UVA-UVB LENS PROTECTION MADE IN CHINA Lenses with uniform tint filter approximately 70%-96% of potentially harmful blue light, and lenses with gradient tint filter approximately 0%-96% of potentially harmful blue light (depending on the portion of the lens tested). The percentage represents the average amount of potentially harmful blue light filtered at 5 nanometer increments in the 415-455 nanometer range of the visible light spectrum. . .