DUCO children's sunglasses provide the best quality and stylish sunglasses.They are lenses made with special filters that block horizontal light waves and allow only vertical light to pass through.Thus, polarizing lenses can reduce the glare of sunlight on your child when it bounces off a smooth reflective surface, such as a pond or a car hood. DUCO kids polarizing lenses allow your adorable kids to see their surroundings more clearly and reduce pressure on their eyes.