Check the label when buying sunglasses. Wear a hat. A hat with a wide brim offers good sun protection to your eyes, ears, face, and the back of your neck - areas particularly prone to overexposure to the sun. Protect other part of your body with clothing during prolonged periods in the sun. Avoid sunlamps and tanning salons.
Sunlamps damage the skin and unprotected eyes and are best avoided entirely.
Watch for the UV Index. The UV Index, developed by the National Weather Service and the Environmental Protection Agency, provides a forecast of the expected risk of overexposure to the sun and indicates the degree of caution you should take when working, playing, or exercising outdoors. Calculated on a next-day basis for dozens of cities across the U.S. by the National Weather Service, the UV Index takes into account clouds and other local conditions that affect the amount of UV radiation reaching the ground in different parts of the country. For More Information Check out the EPA's UV Index fact sheet.