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* The first and foremost thing, which you have to keep in mind, is that UV protection is a must for the sunglasses. It is always good to go for branded pairs, and check the ones, which have a rating of hundred percent in UVA and UVB protection.
* Instead of going with the fad, go for comfort and preferences. The glasses should be very comfortable and should give total protection from sunrays.
* When you are buying a pair, take someone along with you. It will help you choose the pair better and faster. Also, try out as many pairs as you can before narrowing on your choice.
* Although they are in vogue, huge sized sunglasses doesn’t suit everybody especially small faced people. Always choose sunglasses according to your face type.
* The glasses should filter the blue light as it is supposed to damage the retina. Also go for a polarized pair which helps in reducing the glare. Green tinted glasses are a good option as it helps in filtering the blue light and also reduces the glare.
* If you are a sportsperson then go for a rose-tinted sunglasses as they give better contrast for objects viewed against blue and green background.
* If you have triangular facial features then aviator sunglasses would be the best option for you.
* It may be a known fact that every type of sunglasses fits well on an oval features. So if you are blessed with oval face then lucky you!
* If you have a square face then never in any case go for square shaped sunglasses as it will just emphasize your facial structures.
* Wide framed rectangular shaped sunglasses are good option for people with round face. Again, don’t wear round sunglasses as it will just accentuate the roundness.
* If you are a little chubby on the cheeks then get a thick frame for your sunglasses and also opt for darker lenses.
* If you are wide chinned with small forehead then the best option for you would be wide and dark frames. The broader the horizontal size the better the sunglasses would look on you.
* Although the black frames are the most popular choice make sure it doesn’t contrast with your skin tone too much before you opt for one.
* Cat-style sunglasses look perfect for the heart-shaped facial structure. So if you have been refraining from buying one till now, it is your time to buy one. Frames in metallic with rimless bottom and bright colors would also be a good option for you if you don’t dig the cat-style too much.
* The best choices for a diamond shaped face would be an oval or slightly curved sunglasses. However, go for slender shaped sunglasses.
* In addition, polycarbonate (PC) is the most common choice for the lens material as they are lightweight and durable.
* Square shaped or round sunglasses will look good on you if you have an oblong facial structure.
* Your sunglasses must have comfortable nosepiece, shouldn’t look slander, and should always match your skin tone. The rims should also not graze the sides of your face.

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UV Protection
# Make sure the sunglasses you choose will block at least 99 percent of the sun's ultraviolet (UV) rays. UV-blocking glasses protect the cells in your eyes from damage that can lead to cataracts or macular degeneration. If you purchase sunglasses that don't block UV rays effectively, you will be missing out on the most basic function of sunglasses: protecting your eyes. Even the cheapest plastic lenses often come with 99 percent or 100 percent UV protection, so check the label before you buy.
Lens Type
# When browsing the sunglasses rack, keep in mind that some lenses are better than others. Inexpensive sunglasses are usually fitted with plastic lenses, which come in many varieties. For driving or outdoor sports, polarized lenses are best--they block reflected light from the road, snow or water. For general-use sunglasses, grey-tinted lenses are recommended because they absorb light evenly and provide clear and comfortable viewing.
Frames
# Although you will not be paying much for your sunglasses, you will still want them to last more than a few days. Cheap sunglasses made with metal frames are often flimsy and break easily at the joints. A pair of shades with sturdy plastic frames are likely to last longer than metal-framed sunglasses. Plastic frames are also preferable because they will not rust when wet, take longer to sink if dropped in water, won't get hot if left in the sun and are easier to find at the bottom of a pool.

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Tips For Choosing Sunglasses * Numbers matter. When shopping for sunglasses, look for labels that say the lenses block out 99% to 100% of UV radiation. Make sure they block out both UVA and UVB rays.
* Fit matters. Poorly fitted sunglasses may not provide enough protection. You may be less likely to wear glasses that feel awkward or uncomfortable. And when glasses are too small or too large, they may let in light from the sides. Athletes have the right idea with wraparound sunglasses.
* Lenses matter. Polarized lenses deflect glare but don't offer UV protection. Lenses made from real glass provide little protection at all. Your best choice these days? Polycarbonate plastic lenses. These tougher lenses provide adequate UV protection and are sturdier than other varieties. Photochromic lenses are also a good option because they block glare and UV radiation while maintaining visual sharpness.
* Functionality matters. Options exist for those who have a hard time wearing sunglasses. If you wear eyeglasses, try prescription sunglasses, tinting for your eyeglasses, or clip-on lenses with UV protection. New contact lenses are available with enhanced protection, but sunglasses should still be worn.

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