Half of all Americans will have eye cataracts by age 80. According to the Mayo Clinic Ultraviolet light from the sun is a significant risk fact and they recommend wearing sunglasses that block ultraviolet rays when you're outdoors. Our Fore! Sixty UV400 Classic Black Polarized Sunglasses are stylish, lightweight and protective. Buy a pair; put them in your golfbag and always be ready to protect your eyes!!