One of the hottest themes for the summer, what are the best sunglasses to choose? Either the shape does not fit, then they are not dark enough or, on the contrary, too dark. But have you ever thought about the difference between expensive and cheap glasses, UV protection, about whether the glasses will stay on your face if you sunbathe in them? Oh, so to speak, the expiration date of shackles?
Purchasing Sunglasses – this is a whole process, no less important than the choice of SPF protection.
The editors of estet-portal.com will help you figure out the question, which sunglasses to choose.
- Which glasses to choose: what to look for when buying
- Choosing sunglasses by style
- Which sunglasses to choose: choosing the color material
- Which sunglasses are NOT to buy
Which glasses to choose: what to look for when buying
When choosing sunglasses, your first priority should be to protect your eyes. Excessive exposure to ultraviolet radiation can cause various problems for your eyes, such as cataracts, burns, and cancer.
Follow our Instagram page! >If you want your sunglasses to protect you from these risks, look for pairs that block at least 99% of UVB rays and at least 95% of UVA rays.
Do you wear sunglasses for sports or spend a lot of time outdoors? Choose ones that fit well on your face, perhaps with rubber temples. If they are intended for fishing or water use, polarization is a must;
that are labeled "cosmetic" or do not provide any information about UV protection. Look for scratch resistance, many lenses have very brittle coatings. The miser, as they say, pays twice, so don't skimp on 
sunglasses.
We select sunglasses by style
Choose a comfortable size. Sunglasses come in all shapes and sizes! As a general rule, looking for contrast between the shape of your face and the shape of the frame will look good. For example, if you have a round face, it is better to choose a shape with sharp corners, and if your face is more square, a rounded softer frame shape will look good.
Oval face: oval type usually has a "perfect shape faces» and can wear glasses of any style. Avoid frames that are too thick or too thin. Don't choose frames that are wider than the width of your face.
Square face: Because this face shape has very straight, defined jawlines and edges, choose round glasses to balance these features. Make sure the frames are not too thick. Try to choose wider sunglasses and avoid rectangular glasses with sharp corners.
Round Face: A round face has fuller cheeks and chin. Choose polygonal or square sunglasses with an angled design to balance this out. Look for thicker frames.
Long face: choose large lenses and a polygonal frame to change the long face. Consider popular retro glasses and sports glasses.Flat face:
choose darker lenses and frames to highlight the contours of the face. Bright colors can also make expressions pop!
Make sure your sunglasses fit correctly on all counts. The weight should be evenly distributed between your ears and nose, and the lashes should not touch the frames or lenses. The glasses should be your nose and ear stand. Glasses should not press, and even more so cause a
headache.
Which sunglasses to choose: we select the color material
Please note that lens color not only affects your fashion sense, but also affects how well you detect contrast and distinguish colors. Certain colors enhance contrast, which can be helpful; however, this often comes at the cost of a color difference that can cause problems (for example, when you are driving and need to be able to clearly distinguish the colors of a traffic light). Some sunglasses even come with interchangeable lenses, so you can easily change color depending on what you're doing.
Grey lenses
reduce light intensity without affecting contrast or color distortion.
Brown lenses partially enhance contrast by blocking some blue light. Good for snow.Amber yellow lenses greatly enhance contrast because they block out most or all of the blue light, making them popular with hunters who benefit from this contrast when looking at targets against the sky. They are bad, however, for any activity that requires color recognition (such as driving!). Good for winter sports.
for any activity that requires color recognition (such as driving!). Good for winter sports.
for any activity that requires color recognition (such as driving!). Good for winter sports.
Red/orange lenses are good for winter sports, but only on cloudy days.
are good for hunters who need to see clay targets against a green background. 
Blue and green sunglasses enhance contrast.
Check for distortion. Hold lenses up to fluorescent lamp. When you move the sunglasses up and down, make sure that wave distortion does not occur. If it doesn't, that's a good sign.
Choose scratch-resistant lenses. Scratched sunglasses are useless. NXT polyurethane lenses are impact resistant, flexible, lightweight and have excellent optical clarity, but they are expensive.
Polycarbonate is not as scratch resistant and provides less optical clarity than polyurethane or NXT glass, but is more affordable.Polyamide is a less used material that provides optical clarity to glass without the risk of glass breaking.
Acrylic is also affordable, but it is the least durable and optically clear. They are also weak when exposed to heat and
are often deformed.
Which sunglasses NOT to buy
Choosing towards «cosmetic» sunglasses actually contribute to eye damage. Dark lenses reduce the amount of light available to the eye, which causes the pupil of the eye to dilate. Since sunglasses do not block harmful UVA or UVB rays, these rays are easily transmitted into the eye by the dilated pupil. Never wear dark lenses unless they block UVA and UVB rays. xxxx>Photochromic lenses
(those that change based on lighting conditions) don't perform as well in warm conditions (i.e. they get darker in colder weather than they do in warmer weather). They also don't work at all in the car,
Polarized lenses
reduce glare, but they can also react with tints on windshields, creating blind spots and reducing the visibility of LCD readings.
Using our recommendations on the best sunglasses to choose, your eyes will be safe and you will look very stylish.
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