Advertising on the portal

This is why you need to wear sunglasses. Sunglasses: why they are needed, which ones and how to choose How to choose quality sunglasses

Why do you need sunglasses?

Contrary to popular belief, sunglasses are glasses designed primarily to perform two main functions: to save the eyes from bright light and protect them from ultraviolet radiation, and only then as a fashionable and stylish accessory.

The choice of sunglasses must be treated extremely carefully and responsibly, because otherwise the consequences can be fatal - from fatigue, dizziness and even eye diseases and loss of vision.

Why? It's simple. If you walk without sunglasses and the bright sun is shining, then you involuntarily close your eyes - this is a natural protective reaction of the eyes so as not to let in ultraviolet radiation.

And if you walk in darkened glasses that do not have filters and do not protect your eyes from the harmful effects of ultraviolet radiation, then the pupils dilate and ultraviolet radiation freely enters the retina of the eyes, simultaneously irradiating it.

How to choose quality sunglasses

It sounds trivial, but you need to buy high-quality and branded glasses in specialized stores or optical shops - they vouch for the quality of the item you purchased, and the item itself promises to be reliable. There you can check the quality of glasses using special instruments.

During frequent exposure to the sun with correct and working glasses, the area around the eyes will remain lighter - this means that the lenses of the glasses fulfill all the promises made by the manufacturer and protect the eyes from harmful radiation.

Always look at what is indicated in the passport that comes with branded glasses - there should be a serial number of the model, its name, country of manufacture, care instructions, and also indicate the category of the UV filter, that is, how well your eyes will be protected from radiation . UV filter is the degree of protection against ultraviolet rays. For complete eye protection it should be at least 70%.

When choosing sunglasses, you must pay attention to the protective filter category (Cat.), which is indicated on the inside of the temple of the glasses. It is this feature of glasses that characterizes the ability of the lens to protect the eyes from visible sunlight. There are 5 categories in total:

  • Cat.0 is a light lens that is completely useless and does not protect against ultraviolet radiation;
  • Cat.1 - slight darkness and is suitable for protection only on a cloudy day;
  • Cat.2 - average degree of darkness, which is applicable only in conditions of not very bright sun;
  • Cat.3 is a fairly dark lens that is ideal for relaxing at sea, in the mountains and for everyday life;
  • Cat.4 is the highest degree of protection, which practically does not transmit light. These are special glasses and it is better not to wear them in everyday life, and not to drive a car.

Most branded glasses are sold complete with a case and a microfiber cloth.

Very often, potential buyers and experts argue about which lenses are better: glass or plastic. But ophthalmologists have long been unanimous on this issue - both materials are equally good, modern plastic is in no way inferior to glass in terms of protective functions, but such glasses are much lighter and less dangerous.

When choosing sunglasses, remember one rule: it is most comfortable for your eyes to look through glasses in shades of gray, green or brown. This minimizes eye fatigue.

Hold the glasses in your hands and check the quality of the chosen glasses - all the screws and bolts should be firmly secured, the temples should not be loose or too rigid.

Remember that glasses should not distort the real colors of objects.

The following are especially relevant for drivers:

  1. polarized glasses (as they protect against glare and bright direct light);
  2. graduated (dark top and light bottom - such glasses do not obstruct vision, but provide excellent protection from sunlight).

Fans of relaxing on the beach and in the mountains should pay attention to mirrored glasses - they do not heat up in the sun and perfectly reflect sunlight.

The irony about large glasses is very often inappropriate, because glasses with large glasses are the most correct and reliable - they protect not only the eyes, but also the delicate skin around the eyes from premature aging.

Sunglasses and Face Shape

When choosing glasses, focus on your face shape. Experts identify 4 forms and now we will tell you which sunglasses will suit which face. However, remember that everything is very individual. The following statements apply to both women and men.

Round face

If you have a round face, then it is better for you to take a closer look at square frames and avoid round shapes. ​

Oval face

People with an oval face shape can choose any glasses - they are the lucky ones on whom all glasses look good. However, this does not negate the importance of fitting - after all, the glasses still need to “sit” on the bridge of the nose.

Triangular face

People with this face shape can safely buy cat-eye glasses or any round frames.

Square face

Those with a square face shape should pay attention to glasses with round or oval shapes.

We hope that our tips will help you easily choose such a difficult accessory as sunglasses, and discounts from the PromKod.ru website will come in handy, because it is with the help of promotional codes and promotions that you can purchase a quality product at a reasonable price.

Why do you need sunglasses? Of course, many perceive sunglasses, first of all, as a fashion accessory and a stylish addition to their image. But besides this undeniably important mission, sunglasses bring a lot of benefits. Firstly, prolonged exposure to ultraviolet radiation causes a variety of eye diseases - from lens damage to cancer. Secondly, in the bright sun our eyes are under constant tension and the eye muscles quickly get tired. Don’t forget that squinting causes small wrinkles to appear around the eyes – “crow’s feet”, which, unfortunately, are impossible to get rid of later. Parameters for choosing sunglasses Protecting your eyes from ultraviolet radiation Ultraviolet radiation, the most dangerous for our eyes, is divided into UVA and UVB waves with a total length of 290-380 nm. These waves are not equally harmful, but it is advisable to wear sunglasses to protect your eyes from both. It is best to have the inscription “UV-400” on the sunglasses, which means that the lenses protect the eyes from all ultraviolet radiation with a wavelength of less than 400 nm. True, the presence of such an inscription does not always guarantee adequate protection for the eyes - but this is on the conscience of manufacturers and sellers of sunglasses. Many people believe that sunglasses with almost clear lenses do not protect their eyes from ultraviolet radiation. However, lens clarity or color has nothing to do with protecting your eyes from UV rays. In fact, such protection is provided by special additives (films) in the body of the glasses lens or on its surface, which are colorless. And the color of the lenses or the degree of their darkening affects the protection of the eyes from too bright light. Protecting your eyes from too bright light According to European standards, according to the degree of protection from light, sunglasses are divided into five groups: Glasses of the 0th group transmit 80-100% of light (tinted or slightly darkened lenses) - protect from the sun breaking through the clouds in cloudy conditions weather. Group 1 – transmits 43-80% of light, intended for inactive sun. Group 2 – transmits 18-43% of light, suitable for sunny weather. Group 3 – transmits 8-18% of light – for active summer sun. Group 4 - transmits 3-8% of light (very dark lenses) - intended for relaxation at a seaside or ski resort, where the sun's rays are reflected from the water or snow surface. Due to the high degree of darkness, they are categorically not recommended for drivers - it is better for them to use sunglasses of the second or third group. Those who wear contact lenses to correct their vision should know that there are lenses with ultraviolet protection, and they also cost about the same as regular ones. By purchasing them, you immediately receive a number of advantages - you have protection not only from solar ultraviolet radiation, but also from computer radiation. In addition, you can safely buy any sunglasses – even cheap ones, even on the market, since you will only need them to protect from bright sunlight. Color of sunglasses lenses It is worth knowing that not all colors of sunglasses lenses are equally pleasant to our eyes, so you need to be careful when choosing glasses with bright and unusual lens colors. For example, it is believed that brown lenses are the most pleasing to the human eye. But doctors do not recommend buying sunglasses with blue lenses for children. Therefore, for better orientation in the color scheme of sunglasses lenses and their effect on the eyes, we present a table: Lens color Function of glasses Where to use Yellow For sports, a fashion accessory For playing sports or being outside in cloudy weather, indoors Light green, purple, pink, blue Fashionable accessory For dim sun or indoors Dark green Helps reduce eye fatigue For bright or medium-bright sun Dark gray Provides a realistic color perception For bright or medium-bright sun Brown Provides good visualization For bright to medium-bright sun Mirror or with a colored mirror effect Effective against bright sun, significantly reduces the amount of light reaching the eyes For relaxation in the mountains, on the beach in strong sun Transparent (“white”) Only as a fashion accessory In weak sunlight or indoors Increased darkness Not relevant for everyday use life, dangerous for drivers In very bright sun: highlands, desert, sea. Gradient of different colors or one color Apply depending on the color of the lenses and their darkness For medium-bright sun, indoors. Material for making sunglasses lenses Currently, sunglasses lenses are made of either plastic or glass, and there are much more glasses with plastic (polymer) lenses. Previously, it was believed that glass lenses were better, but with the development of new technologies, plastic became much better and is now in no way inferior to glass. But sunglasses with glass (mineral) lenses are considered dangerous due to their fragility, especially if a person leads an active lifestyle - they can break every time they fall. If the glasses fall along with their owner, they may break and injure his eyes. That is why it is generally not worth buying glasses with glass lenses for children - in the USA it is even prohibited. In addition, glass lenses fog up faster and more and are much heavier than plastic ones, which means that such glasses are less comfortable and convenient. Almost the only advantage of glass lenses is that they are harder to scratch. Fashion trends in sunglasses for the spring-summer 2008 season. Shape The style of sunglasses fashionable in 2008 is retro. Therefore, pay attention to large, streamlined frames in the style of the 50-60s of the 20th century. They can be either round or rectangular in shape. Volume contrast is also used - if the frame of the sunglasses is massive, then the temples should be thin and vice versa. The aviator shape remains fashionable, as do mask glasses – both massive and lightweight. But sporty forms of sunglasses are not very relevant this season. Color In 2008, sunglasses with frames in discreet colors - black, brown, gray - are popular. Some collections of sunglasses contain shades of purple or lilac, as well as imitations of animal skins or snakeskin. Design As in previous seasons, appliqués made of rhinestones or mother-of-pearl are used as decorations for sunglasses frames, and in expensive models - from Swarovski crystals. A characteristic feature of the fashionable spring-summer 2008 sunglasses are openwork temples, reminiscent of forged patterned grilles. Some models now have logo medallions inserted into the temples. How to spot a fake? Of course, on the market for 20 hryvnia you will never buy real Italian or French designer sunglasses, so you don’t even have to look at the corresponding inscriptions on the frames. However, it happens that in stores, and even for a substantial price, they sell fakes. A definite sign of the authenticity of sunglasses is the inscription MADE IN ITALY or MADE IN FRANCE. Counterfeits of well-known brands are most often disguised with the inscriptions Italy, France, Design Italy, Italian style, Produce for Europe, USA and others. What do some of the labels on sunglasses mean? The compliance of sunglasses with European standards is indicated by the “CE” symbol. The passport, which must be present for expensive sunglasses, must indicate that the glasses comply with standard N 1836. If the passport of the sunglasses contains the inscription “glare protection”, this means that they can “dampen” glare from reflective surfaces - for example, water. How to care for sunglasses? In order for sunglasses to last as long as possible, you need to store and wear them in a special case or bag. You need to wipe the lenses with a soft, preferably a special, cloth. If your glasses become very dirty, wash them with soap and water, shampoo, or dishwashing detergent. There are also special sprays for caring for glasses lenses.

Health

The human eye is a unique human sensory organ, quite vulnerable and does not like bright sun. Those who like to soak up the sun and sunbathe will find it difficult to do without sunglasses. The eyes are especially affected in the summer, when the sun's rays are reflected from asphalt roads, glass, concrete, metal products, and other materials used by humans to arrange their lives. Of course, your eyes need to be protected, so an excellent solution for them would be to purchase sunglasses.

What are the benefits of sunglasses?

Based on the name itself, of course, the eyes are safe from direct sunlight, although many people wear them as just a beautiful accessory. They wear sunglasses, both on a bright sunny day and in cloudy weather, when walking through supermarkets, when going to work or meeting with a business partner - they simply wear them unnecessarily.

Sunglasses are worn when necessary. For example, on the seashore on a sunny day, in the desert or in a place where there is a large amount of snow-white snow and a lot of bright sun. Also, a driver who goes on a long journey must take dark glasses with him so that an accident does not occur from the reflection of light from the road. In addition, photophobia may appear - this is a fear of sunlight, when there is some discomfort and pain in the eyes.

According to doctors, dark glasses should be worn when necessary, since nature already has a protective mechanism for the eyes. However, they need to be chosen correctly at the time of purchase. Do not wear such glasses on cloudy days or in the evening. The pupils will regularly dilate, which often leads to some visual impairment or, even worse, glaucoma.

Plastic or glass?

When purchasing sunglasses, you should think: plastic or glass? Of course, glass lenses break, leading to serious injury. Therefore, they should not be chosen by a child, a motorcyclist, or a driver. Some researchers believe that glass glasses provide good protection from the sun's rays, but now there are also good plastic glasses with special protection. They contain special components that provide reliable protection against UVB radiation. This designation can be seen on the glasses and label. For example, the UV95% marking indicates how much ultraviolet radiation is absorbed by the glasses, and the UV400 marking indicates that all types of UV radiation are absorbed.

So, of course, you can’t buy high-quality dark glasses at the market, and they have an appropriate price. On branded products, the manufacturer's marking will be on the label itself and on the lenses (or on the temple). Self-adhesives often indicate a fake. Why do you need sunglasses?

Dark glasses were introduced to the general public in America in the 1930s. Before this, they were used exclusively by pilots. Initially they were called “anti-glare safety” glasses, but after some time they were dubbed “exorcist ray” glasses, that is, Ray Ban. And soon the glasses began to enjoy enormous popularity not only among military pilots, but also among the civilian population. Initially, the glasses had a strict teardrop shape. And this was not a whim of the designers there, but an absolutely scientific approach. It is this form of glasses that corresponds to the objective visual field of the human eye. Now, of course, sunglasses do not comply with such parameters. They have become an accessory, a fashionable element of fashion, a style-forming link. So why do you still need to wear sunglasses? What are they protecting us from?

1. From the sun

The blinding sun shining in our eyes is simply unpleasant, which is why we wear glasses. Some people can't go outside without them. Someone complains that they can’t see anything, someone has tears running from their eyes, someone sneezes. Everyone has their own wisdom. Well, there are people who can do fine without this accessory.
Looking at the sun, or even being outside in sunny weather, we instinctively squint and wince. And this leads to the formation of premature wrinkles, not only around the eyes, but throughout the entire face.

2. From snow

Goggles protect against bright light coming from the snow. Sometimes the whiteness of the snow reaches such strength that we cannot calmly look at the objects around us, and even more so at the snow. The fact is that snow has good reflectivity. And its whiteness itself and this property greatly impairs our vision. The resulting glare, due to the sunlight refracted in a special way, also blinds us.
Goggles are indispensable when skiing and practicing other winter sports, especially if it involves high speeds. Reflected light from snow or ice is a direct threat to ski racers. Glare is also dangerous when driving on winter roads, when the roadsides are buried in snowy whiteness.

3. From ultraviolet rays

It is known that with prolonged and constant exposure to the sun, ultraviolet rays can damage the cornea of ​​the eye. This in turn leads to cataracts or, in some cases, retinal degeneration at the molecular level. As people age, most people develop eye cataracts to one degree or another, and exposure to sunlight accelerates this process. By the way, UV rays in excess also lead to the formation of wrinkles.

4. From wind and dust

Sunglasses are an excellent barrier against wind, dust and debris that flies into our eyes. And if you wear contact lenses, this prevents them from drying out, getting dirty, and getting germs into them. After all, small particles of debris in gases or lenses are not only inconvenient, but also not hygienic.

5. For eye fatigue and headaches

Our pupil is designed in such a way that it can control the light that reaches the retina at the back of our eye. In dim lighting, our pupils instinctively dilate and let in a little more light. And in bright light, the pupil contracts so that strong light does not reach us. But under “dazzling” light conditions, the pupils are physiologically unable to contract sufficiently. Therefore, the illumination does not decrease to, let’s say, a comfortable level. We squint, and this, in fact, is an attempt to further reduce the flow of light entering the eyes, and, as a result, into the brain. After all, it is there that the processing of contraction and decompression of the pupils, the entry and loss of light occurs. The constant narrowing of our pupils and their squinting can lead to eye fatigue and headaches. Sunglasses reduce the amount of light reaching your eyes. This increases the feeling of comfort and reduces the painful effects of “side” fatigue.

6. From poor vision

Our eyes need to receive a certain “dose” of light. If they constantly have too much or too little light, this can worsen their vision. Maybe not immediately, but in a few years. Too much light is just as bad as too little. But excessive glare, which occurs in the summer and spring, causes something like “fading” of the retina. And this leads to a decrease in visual acuity. High quality glasses will provide you with the best protection against these injuries. Of course, ordinary cheap plastic will not solve this problem. And original, genuine glasses from well-known companies, which are famous for their excellent optical clarity, will help preserve your vision.

7. From the picky looks of fashionistas

Glasses are the primary accessory that reflects your uniqueness. Well-chosen sunglasses can add a special touch to your look. They will be the main focus of your style if there are no other ways to attract attention. If previously it was believed that a woman’s hairstyle and shoes “make” her image, then in our time this can safely be said about glasses.