First, look for a pair with UV protection. The pair you choose should block 99-100% of UVA and UVB radiation, and that label will read 100% UV protection or UV 400.
Second, decide what kind of sunglasses you’re looking for. Do you want dark lenses, or an indoor/outdoor light tint? Keep in mind that different tints can change your world: while grey will reduce light, but not change colors, green lenses will filter out some blue light and provide greater color contrast.
Third, ask the salesperson about all the little details, such as if the lenses are scratch resistant, if they’re polarized, and what material they’re made of. When you’re found your ideal combination, begin looking for your frame style. Don’t choose anything too trendy, or your investment will be useless next year. Take care to choose a style that flatters your face, and if you have long hair, try the sunglasses with all your different hairstyles.
