How to choose sunglasses, pabiuyou shop to share

If you think buying sunglasses is all about trying on products and looking in the mirror, this article will refresh your understanding.Have you considered UV protection?Durability, visibility, head shape and face shape?In addition to aesthetics, there are many issues to consider when buying sunglasses!

Choose sunglasses that protect your eyes

The primary purpose is to protect the eyes.
Over-exposure to UV radiation can lead to problems such as cataracts, sunburns and cancer.
If you want to protect yourself from these risks with sunglasses, you need to find a pair that blocks at least 99 percent OF UVB rays and 95 percent of UVB rays.
Also, learn about sunglasses’ ability to block light.
See how much you can see around the frames, i.e. does sunlight come in through the top or side of the sunglasses?
Do you buy sunglasses for exercise or for a long time outdoors?
Choose a pair of sunglasses of just the right size, with rubber foot covers.
If you are using polarized sunglasses for fishing or water sports, you must choose polarized sunglasses, which offer better sun protection.
Do not buy sunglasses marked “Fashion mirror” or that do not provide any information about UV protection.
Look for products with scratch resistance.
Many lenses have delicate coatings.
We all want expensive goods to last longer.
Fortunately, many models can replace broken lenses.
Decide on style.
Select the size.
Sunglasses come in all shapes and sizes!
In general, contrasting the shape of your face with the shape of your frame will make your face look better.
For example, if you have a round face, a more angular frame is better.
If you have a square face, a round, soft frame is best.
Here are some popular styles:
Mirror – with reflective coating on the surface.
American police often use it.
These sunglasses usually come in the pilot or blindfold style.
Pilot – Teardrop lenses and thin metal frames.
American pilots, military personnel and law enforcement personnel use it frequently.
Perfect for any face shape, especially an oval face.
Traveler – popular in the 1950s and 1960s.
Audrey Hepburn wore them in the 1961 film Breakfast at Tiffany’s.
Tawny sunglasses – Popularized by John Lennon and Ozzy Osbourne.
However, their ability to block light is not very strong.
Eye mask – for sports and extreme sports.
Xl — Sunglasses worn by models and movie stars.
Charming and charming.
Choose the shape of your sunglasses according to your face shape.
Here’s how to mix and match face shapes and sunglasses:
Oval: Oval faces are often referred to as the “perfect face shape” and can be worn with any type of glasses.
The frame should not be too thick or too thin.
Don’t choose frames that are wider than your face.
Square face: Since the face is straight and the chin and outline are obvious, round glasses can be used to balance these features.
Make sure the frames are not too thick.
Try wide sunglasses instead of square ones with sharp corners.
Round face: Round face has plump cheeks and chin.
Choose polygons or square sunglasses with angular designs to balance these features.
A thicker frame is better.
Long face: Choose larger lenses and polygon frames to decorate your long face.
Consider popular vintage and sports glasses.
Flat face: Choose darker lenses and frames to accentuate the contours of the face.
Bright colors can also make the expression more vivid!
Make sure sunglasses are the right size.
Try them on to make sure they are not too tight on your head.
The weight should be evenly distributed over the ears and nose, with the lashes not touching the frames or lenses.
Glasses should sit right on the bridge of your nose and ears and need to be adjusted if they veer to one side.
Also, use the fact that your lashes don’t touch your lenses to gauge whether sunglasses are appropriate.
If sunglasses are not the right size, you can go to the optician’s to have them adjusted.
Make sure the lens area is large enough to block out sunlight.
Choose your lens color
Note that lens color affects not only fashion sense, but also the ability to detect contrast and distinguish colors.
Some color lenses are useful for enhancing contrast, but they often come at the expense of color discrimination, which can lead to other problems, such as the need to clearly distinguish the colors of traffic lights while driving.
Some sunglasses even come with interchangeable lenses that allow you to easily change the color of your lenses as you do different things.
Gray lenses can reduce light intensity without affecting contrast or distorting the color.
Brown lenses enhance contrast by filtering some of the blue light and are suitable for snow sports, [2] and most hunting activities when the light is bright and the background is clear.
Amber or yellow lenses can filter out most or all of the blue light and enhance contrast significantly, making them popular with hunters because contrast is good for tracking targets in the air.
However, these lenses are not suitable for activities that require color recognition, such as driving, and are suitable for snow sports.
Red or orange lenses can be used for snow sports, but only on cloudy days.
For hunters, orange lenses are useful for spotting earth-yellow targets in open fields.
The purple lenses are suitable for hunters who want to spot kha-yellow targets against a green background.
Copper sunglasses can dull the color of the sky and grass and make the golf ball stand out.
Blue and green sunglasses enhance the color contrast of yellow tennis balls.
Check for color distortion.
Check your lenses against a fluorescent light.
Check for distortion of the waveform as you move the sunglasses up and down.
The absence of distortion indicates that sunglasses are of good quality.
Choose the right lens material
1Choose scratch resistant lenses.Sunglasses are useless after a cut.The lenses made of NXT polyurethane have the advantages of impact resistance, flexibility, light weight and high optical clarity, but they are expensive.Glass is heavier, more expensive, and can crack when you drop it.Polycarbonate lacks the scratch resistance and optical clarity of NXT polyurethane or glass, but is more affordable.Polyamide is a lesser-used material that provides glass-like optical clarity without the risk of breakage.The scratch resistance of different polycarbonate lenses varies significantly depending on the hard coated surface used in production.Acrylic materials are less expensive, but have the least durability and optical clarity.They are also less resistant to heat and often deform.Glass or resin material is the best choice.
Round frames are good for square faces, rectangles for heart-shaped faces and squares for round faces.
If your eyes are small, you can try darker lenses, which make them appear larger.
Make sure the lenses are smooth and free of scratches, bubbles or spots before buying.
Check that sunglasses are the right size and will not slide off your face.
If you are playing sports, you need to pay attention to your surroundings and sunglasses may be thrown out if you are not careful.
When traveling, be sure to put your sunglasses in a hard case for protection.
Otherwise you could sit on it and crush your sunglasses.
Make sure they look and feel right for your face.
Sunglasses that are too small or too big, too heavy, or that look good but feel bad are not for you.
Make sure your lenses are dark enough.
Sunglasses with light, white or pink frames and lenses will stand out on dark skin.
When not wearing sunglasses, place them in a safe place to avoid scratches on the lenses.
Wearing ‘fashion mirrors’ can actually damage your eyes.
Dark lenses reduce the amount of light your eyes are exposed to, causing your pupils to dilate.
Since these sunglasses cannot filter out harmful UVA or UVB rays, they can easily enter the eye through the dilated pupil.
Avoid sunglasses with dark lenses unless they filter out UVA and UVB rays.
Photochromic lenses, which vary according to light conditions, do not work well in warm environments, meaning they become darker in cold weather and lighter in warm weather.
The lenses don’t work in cars, either, because exposure to ultraviolet light darkens them, but the car’s windshield filters out the light.
Polarized lenses can reduce glare, but they can also react with the color of the windshield, creating blind spots and reducing the visibility of LCD displays.

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