When you buy sunglasses, look for a style that looks good on you and is comfortable to wear. Different people have different preferences and choosing the right pair of shades will make you stand out in the crown, and provide ample protection for your eyes from UV radiation.
When buying glasses Look for 99 percent or 100 percent UV protection, to block most of harmful UV rays.
The larger the lenses, the better protection they offer. Large lenses generally protect better because they hide more of the area around your eyes.
Although it may seem counter intuitive, darker isn’t automatically better. The darkness of the lens affects only the ability to filter out visible light. The protection from UV light is conferred by coatings applied to the lens.
Yet shading is important in protecting you from glare — a different problem from UV light. For many people, very bright light causes an unpleasant sensation. It makes you squint, and it’s harder to see clearly.
Lenses come in different shades, for different situations. For example, dark lenses are best for a sunny day on the water, while lighter tints may be better choices for overcast days. These days, you can get “photochromic” lenses that change their shade depending on the amount of light. Indoors, they are clear. Outside in bright sun, they become a dark shade.
You want the frames to fit comfortably, with the lenses directly in front of your eyes. Frames should be leveled on your face, and one side should not be higher or lower than the other.
Polarized lenses add additional layer of glare reduction, it’s especially helpful when driving, playing sports, or spending time outdoors.
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