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The good news is that natural allergy relief is at reach on your refrigerator: Foods abundant with vitamin C and vitamin b folic acid help reduce inflammation connected with hypersensitive reactions, as well as some studies have discovered that some herbs are as effective as high-cost drugs. Include foods abundant with vitamin C (such as citrus and broccoli) in your diet as being a natural and effective way to help remedy allergy. Sunglasses allow better vision in bright daylight, and may protect one's eyes against damage from high levels of ultraviolet light. Typical sunglasses are darkened for protection against bright light or glare; some specialized glasses are clear in dark or indoor conditions, but turn into sunglasses when in bright light. Most sunglasses do not have corrective power in the lenses; however, special prescription sunglasses can be ordered. Specialized glasses may be used for viewing specific visual information (such as stereoscopy) or 3D glasses for viewing three-dimensional movies. Sometimes glasses with no corrective power in the lenses are worn simply for aesthetic or fashion purposes. Even with glasses used for vision correction, a wide range of designs are available for fashion purposes, using plastic, wire, and other materials.