evidence: - UVB rays cause sunburns, skin cancer, skin aging, and snow blindness (a sunburn to your cornea that causes a temporary loss of vision) and can lower your body’s ability to fight illness. [...] - Do not burn. Sunburns significantly increase the lifetime risk of developing skin cancer, especially for children. [...] - Wear protective clothing. Wide brimmed hats offer good sun protection for your eyes, ears, face and neck. Sunglasses that provide 99 to 100% UVA and UVB protection will greatly reduce eye damage from sun exposure. Tightly woven, loose fitting clothes will provide additional protection from the sun.