Most people suffer from headaches at one time or another when wearing sunglasses, and many people suffer from migraines, ranging in frequency from several times a year to once a month or more often. In many cases, a migraine or severe headache forces the sufferer into isolation until it goes away, damaging their ability to work, socialize, and generally live life to its fullest.An effective pair of sunglasses should block both UVA and UVB rays, but new research suggests that High Energy Visible (HEV) light may also contribute to eye disorders, particularly in children. There is still insufficient data on this subject, but some manufacturers now design to block UV rays as well as HEV light, reducing your changes or visual damage from light sources. It's very important to note that dark glasses are not the same as UV-exclusive glasses. Check to make sure that your shades are made by a reputable manufacturer, and that they're certified to block out UVA and UVB at least, if they don't do this, it's very possible that they're worsening your exposure to harmful light by tricking your eyes into.
