Polarized glasses – what are they?

Top best polarized glasses for fishing

There are brands of polarized glasses that are perfect for fishing. As mentioned above, sun protection is not the only feature of polarized glasses; they protect the organ of vision from UV rays, but also maintain full visibility even on the brightest sunny day. It is known that during the period of snow melting, the reflection from the surface is so bright that the strain on the eyes increases several times. There are frequent cases where fishermen, without appropriate polarized glasses, suffered corneal burns. Redness and pain in the eyes are far from the saddest thing after such a burn.

Of course, various brands are fighting for primacy in the market. Advertising and real customer reviews have identified a certain top popular brand of polarized optics. We present to you a list of the best glasses for fishing.

Polaroid P7420B

This Polaroid P7420B model belongs to the sports line. It has a second category filter, as well as a non-sinking frame, which is most valuable for fishermen. The shape of the glasses ensures a comfortable fit; they do not slip off even with sudden head movements.

This model is designed for lovers of extreme recreation, so if the glasses fall into the water, they can be easily retrieved due to the non-sinking frame. Also, Polaroid P7420B glasses have impact-resistant layers, and the outer layers of the lens have a scratch-resistant coating.

Matrix

Matrix polarized glasses create a successful combination of style and high-quality vision protection from UV rays.

The design of Chinese manufacturers is developed taking into account modern trends and fashion trends. The affordable price will be a pleasant bonus for this stylish accessory.

Cafa France

Cafa France polarized glasses have frames made of nickel-silver alloy and high-quality plastic.

A clear and contrasting image and improved visibility in bad weather conditions make these glasses popular among motorists. A wide range of models allows you to choose an accessory to suit every taste.

Glasses from aliexpress

Chinese optics have an affordable price and a large selection of models. Quality can be determined from customer reviews or from your own experience.

The cheapest polarized glasses from Aliexpress are in any case better than expensive branded sunglasses, due to their cost.

Shimano Sunglass Yasei

Modern Shimano Sunglass Yasei sports glasses will become a permanent assistant to any fisherman. They are made of durable Grilamid TR90 material.

The ends of the temples are made of rubberized material, as is the nose pad. Comfortable socks will allow you to wear glasses all day.

Rapala Sportsman's Floater

Impact-resistant Rapala Sportsman's Floater sports glasses are equipped with comfortable temples that will not allow them to come off.

They have hinges with an internal spring, as well as a rubberized nose pad, creating a comfortable fit during daily use.

Salmo S 2513

Polarized glasses Salmo S 2513 protect the fisherman's eyes from UV radiation and reduce sun glare from water and ice. Glasses allow you to fish even if you are facing the sun all day long. Motorists will not suffer from oncoming headlights.

The thickness of the lenses of this optics is 0.75 mm.

Kosadaka SG1811

Kosadaka SG1811 glasses have light brown filters, as well as a rather stylish design and transparent temples. Excellent for fishing in different lighting spectrums.

The low price allows a buyer with an average income to have a useful accessory.

Costa Del Mar Fisch

Stylish Costa Del Mar Fisch polarized sunglasses designed for fishermen. Thanks to the latest technology, they block the yellow spectrum, protecting your eyes even in the sunniest weather.

The lenses are made of polycarbonate, making them impact-resistant and lightweight. The frame is made of nylon. The manufacturer provides a lifetime warranty for the product.

Tagrider GLTR 011

Excellent Tagrider GLTR 011 glasses, made of hypoallergenic impact-resistant polymer.

The glasses have multi-layer polarization, which provides maximum protection for the eyes from the harmful effects of the sun.

Norfin NF-S2001

Norfin NF-S2001 glasses designed for fishing with different light spectrums. They have replaceable lenses. The universal design of the glasses will suit any clothing style. The frame is made of durable polycarbonate.

Excellent fishing will not be overshadowed by the blinding rays of the sun if you purchase polarized glasses in advance, which will keep your eyes healthy, improve the picture and will be a good accessory when you have to drive home with your catch in your car.

Checking polarized glasses

Considering the higher cost, the buyer faces the question - how to check polarized glasses and distinguish a fake? It is useful to know that in original products from leading brands, the polarizing filter is always protected from external influences, which guarantees its durability. For example, the Ray Ban company uses film placement inside the glasses, and the manufacturer Oakley polarized produces lenses at the molecular level.

Unscrupulous manufacturers use simpler techniques. A thin film is applied to the surface of a glass or plastic lens. As you wear the glasses, the film gradually wears off and the glasses lose their polarizing properties.

To check polarized glasses, you need to look at the picture in the gap between two pairs of identical products. They must be positioned at an angle of 90 degrees relative to each other. In real glasses, the light will noticeably darken.

Experts know how to test polarized sunglasses using your phone. It is necessary to compare the image on the LCD screen with the glasses in the usual position and perpendicular to the screen. If you have a high-quality filter, the image will darken.

How polarized glasses work

This type of optics protects vision from the harmful effects of glare, in other words, from light that is reflected from various surfaces - this includes the surface of roads, ice and snow, the surface of water, roofs of houses, etc. Glare negatively affects eye health, impairs visibility, and blinds.

The ability of surfaces to reflect light, thereby creating glare, varies

For example, wet road surfaces are highly reflective, so it is extremely important for drivers to choose the right glasses to avoid accidents.

Sunglasses with a polarizing effect are able to block reflected light, thereby maintaining healthy vision, increasing visibility, and promoting overall visual comfort.

How do polarized glasses work?

The glasses have special polarized lenses that perfectly block glare reflected from various surfaces. Polarized lenses have a multilayer design, the “heart” of which is a polarizing film. This film is installed in lenses in such a way that it transmits only vertically polarized light and blocks horizontal polarization.

Benefits of polarized glasses

• This optical accessory reduces eye strain and provides a feeling of comfort.
• Visibility improves, the eyes are completely protected from the negative effects of ultraviolet radiation.
• Protects eyes from fatigue.
• Glare is blocked and image contrast and clarity are enhanced.
• Ensure safe driving.
• Polarized sunglasses are a fashionable, modern accessory that will complement any look.

Are sunglasses and polarized glasses the same thing?

Polarized glasses are both sunglasses and polarized. They provide reliable protection from the bright sun by reducing light entering the eyes. These glasses block more than 50% of the sun's rays, especially if they have additional shading.

Conventional sun lenses do not provide complete protection against glare, even with anti-reflective coatings. They do not have the ability to reflect polarized light. Such glasses only reduce the intensity of the light flux.

Before purchasing, you can check whether the glasses actually have a polarized coating. It's very easy to do.

First way. At the store, ask for another pair of polarized glasses. Place them lens to lens. At an angle of 90°, polarized lenses will give a dark gap; simple glasses will not change anything.

Second way. Look at any LCD monitor through polarized glasses (this test does not work with other displays), turning them 90° relative to the display. With polarized glasses, the image will be dark.

Choosing the right polarized glasses

If you want to buy high-quality polarized glasses that can last you more than one season, try to find a store with a good reputation. If you make a purchase at a dubious retail outlet, then you will not receive any guarantee that these are polarized glasses and not ordinary sunglasses.

Try on glasses. At the same time, you should not feel any discomfort - the arms should not press anywhere or, on the contrary, fly off you at the first sharp movement. It’s better to immediately buy those that fit perfectly. However, there are some models where it is possible to bend that part of the earpiece that is adjacent to the ears. In this case, you can customize them to suit you.

Look how transparent the lenses in your glasses are - through them you should see the world without distortion, clearly and without ripples in your eyes.

Keep in mind that polarized glasses with diopters are almost never found, since combining two technologies - optical and polarizing - is a very labor-intensive and expensive process. Therefore, you may be offered prescription glasses with anti-reflective coating. This coating only removes glare on the lens itself. The best solution for myopia is a combination of contact lenses and polarized glasses. If for some reason you cannot use contact lenses, then it is better to choose polarized overlays for glasses.

To make sure that you are looking at real polarized glasses or overlays and not a fake one, take two pairs of glasses and place them at an angle of 90 degrees to each other. In this case, light should not pass through the lenses.

Look through the glasses at the liquid crystal display of the monitor, rotating them around its axis: if the display turns black, then you are looking at real polarized glasses.

Pay attention to the lens material. Drivers, for example, are better off choosing plastic ones (polycarbonate), since they are lighter, fog up less and are not as dangerous as glass ones.

When choosing the color of your lenses, proceed from what you need them for. If you want to wear them all the time, the best filter would be a gray one. Such lenses are less irritating to the eyes and convey almost all shades of colors. If you need glasses for fishing, then yellow lenses are best if you are going to fish on the river, or blue and mirror lenses if you are going to the sea. If you drive a car, the best choice for you would be lenses in grey, brown or green shades.

How to check polarized glasses

Check the goods without leaving the checkout. In the store itself you can find out how high quality the glasses you are going to buy are.

How to check in store:

1. In good retail outlets, sellers have special indicator strips that will help you determine the quality of the polarizing filter. Look at the indicator through your glasses and you will see an image that you cannot see without them.
2. Take the second polarized glasses, place them opposite each other, and then rotate one 90 degrees so that the centers of the lenses coincide. If they darken in places where they coincide, then the glasses are of high quality; if the visibility has not changed, then no.

Clips

There is also a version of glasses with clips. If necessary, clips are attached to the glasses, which create darkness. Under normal conditions, it is enough to remove the clips, and the accessory becomes glasses with clear lenses.

These glasses are suitable for you if you have complex lenses. For astigmatism or large diopters, sun lenses are produced only to order, and this increases their cost several times.

With clip-ons, you order regular lenses and use the clips as needed. It is possible to attach corrective clips to sunglasses.

Clips are in great demand and have a wide range: polarized, mirror, anti-reflective, with magnets, teeth, hooks.

According to many people who have ever used clips, this is the most convenient option after photochromic coating. You can simply remove the clips at any time and continue to enjoy the colors and clarity of the world around you to the fullest.

Sunglasses with diopters are an indispensable and useful thing for people who have vision problems. Especially on vacation. While swimming, goggles will protect your eyes not only from powerful ultraviolet radiation, but also from accidental splashes of water.

Also, in countries with humid and hot climates, people who wear regular glasses and sunglasses separately must often take them off and put them on in order to see something or protect their eyes from the sun.

Drivers with regular glasses have it even worse - the sun and glare interfere with normal visibility, and this is fraught with serious consequences.

Corrective sunglasses are also suitable for athletes. Despite the fact that the glasses limit the viewing angle, they will protect your eyes from dust and ultraviolet radiation in all weather conditions.

What does polarized glasses do and who needs it?

Polarization is the ability of glasses to cut off horizontal rays of light, that is, glare . It is provided by the thinnest liquid crystal membrane placed outside or inside the lens.

The production of polarized glasses requires the use of high technology and expensive materials, so they simply cannot be too cheap. But this model also provides a lot of benefits :

• Eliminating glare improves visual comfort and reduces eye fatigue. This allows you to avoid headaches and vision problems when worn for long periods of time.
• The colors of the surrounding world are not distorted, and the contrast of vision is maintained under any weather conditions and lighting conditions.

Such properties are most useful when driving a car and being near water. But even if you don’t drive and are not into fishing or water sports, you will need polarization both on vacation and in the city :

• By protecting your eyes from glare, you will make your vacation at sea or in the mountains more bright, comfortable and memorable.
• On the way to and from the office, or just for a walk, avoid a lot of unpleasant situations associated with temporary disorientation from a random “sunbeam”.

Tips for choosing polarized glasses

What does the marking on the inside of the temples mean:

CE - glasses are certified and approved for use in the European Union.

UV400 – 100% protection against ultraviolet rays, respectively, UV380 – 95%.

P – have a polarizing effect.

In addition, by reading additional numbers and letters, you can find out the production date and main dimensions.

We are interested in the width of the lens optionally, but the length of the temple and the size of the bridge are important. In order for the glasses to sit on your face like a glove, not cause discomfort and not distract from fishing, before purchasing you need to carefully check everything - the arms, hinges, frames and glasses

In order for the glasses to sit on your face like a glove, not cause discomfort and not distract from fishing, before purchasing you need to carefully check everything - the arms, hinges, frames and glasses.

The arms should not be longer or shorter. In both cases, points may fall off

If you can't find the perfect one, pay attention to models with adjustable arms. Shimano has such glasses, for example.

Bend the arms is not the best solution

In addition, look in the mirror and make sure that the arms are parallel to each other. If this is not the case, this glasses size is not for you.

To find your size, refer to the length of the frame bridge on the marking.

A few words need to be devoted to noses and spouts. After all, they take on the main load.

To prevent glasses from rubbing or irritating the skin of the nose and bridge of the nose, pay attention to the part called “nose pads”

Faces, like noses, are different for everyone, so it’s not a fact that your nose will make friends with a nose pad. Moreover, this may not be immediately noticed, but can only be found out during operation. In order to at least partially protect yourself from this, look at how your glasses sit on your nose.

There should be no gap between the nose pad pads and the nose itself - the glasses should sit on the nose, like Budyonny’s saddle at the parade. Many models have adjustable pads to eliminate this problem.

People who already wear prescription glasses will have a little difficulty choosing this polarized accessory. However, this is a minor problem and the solution has already been provided by the manufacturers. For example, there are models that can be worn freely over basic glasses. If this is not entirely convenient, you can use special polarized pads that are attached to “standard” glasses or the visor of a cap.

How to choose polarized glasses

In order for polarized glasses for fishing to become an assistant, it is important to choose them correctly. This is not difficult to do, you just need to be guided by the following rules when choosing optics.

And so, let’s take a closer look at the points on how to choose polarized glasses for fishing, as well as for other purposes:

• comfortable wear - if you feel discomfort during fitting, then you should not take such a product. It should be understood that polarization can provoke dizziness and migraines. If you have such symptoms from wearing glasses, it is not recommended to use polarized optics. Adding diopter. For people with poor vision, it is advisable to purchase glasses with diopters;
• tight fit - glasses should not slip or fall when you tilt your head down;
• glass glasses - polarized glasses made of glass have an important advantage over plastic ones. Only glass blocks UV rays. Long exposure to the sun wearing glasses made of plastic lenses can harm your eye health;
• degree of polarization - if peripheral vision is developed, then there is no need for additional filtering. Increased polarization worsens the picture on the sides.

It is also necessary to focus on the shape and frame, since they too may contain a snag. If it so happens that the purchase of a model is carried out without preliminary fitting (for example, as a gift), then it would be more advisable to choose the model that is equipped with adjustable arms. This will make it possible to set the required width for convenient and comfortable wearing. Car enthusiasts, fishermen and athletes will benefit from curved lenses that cover more of the field of view. For fashionistas, straight lenses are quite suitable; they will look stylish and cost less.

Glasses for drivers: how to make the right choice

Until recently, special glasses for driving caused a skeptical grin among many. It would seem that there is nothing complicated here: you buy sunglasses and use them when driving a car.

In practice, everything is a little different: experts strongly recommend that drivers get special glasses for driving a car, as well as glasses for driving in poor visibility conditions (at dusk, at night, in fog).

In order not to make a mistake when choosing glasses for drivers, you need to pay attention to some design features of such glasses. Frame requirements

Frame requirements

In short, driving glasses should not in any way distract your attention from the road. The ideal glasses frame for a driver is light, not wide, with narrow (no more than 6 mm) earhooks, nose pads and ends of the arms are made of rubber.

Pay attention to the attachment of the earhooks to the frame: unlike regular glasses, in driving glasses the earhooks are attached to the top or bottom of the frame so as not to limit the field of view. Let's talk about lenses

Let's talk about lenses

Lenses for driving glasses can be made of plastic or glass. In general, both plastic and glass lenses provide equal comfort, but from a safety point of view, it is preferable to use glasses with plastic lenses, because in the event of an accident they will not injure the eyes.

Driver blinding from oncoming cars, wet asphalt, windows, windshields, chrome parts and other shiny surfaces is a common cause of road accidents. Glasses with an internal anti-reflex coating reliably protect your eyes from glare and excess sunlight.

Approximately the same function is performed by the gradient-tinted driving glasses that many drivers love. In such glasses, the upper part of the glass is as dark as possible and has a mirror coating, while in the direction from top to bottom the intensity of the darkening decreases. Thus, the driver's eyes are protected from bright light and glare, and the instrument panel is clearly visible through the lower part of the lens.

In addition, you may be offered special glasses for driving in conditions of poor visibility (during rain, snow, fog, in the evening and at night). The lenses in such glasses are usually colored yellow, orange or red and block blue-violet rays.

The most popular glasses in this segment are Polaroid glasses.

A choice for those whose vision is not perfect

Although most driving glasses use non-prescription lenses, there are driving glasses for people with low vision. Many opticians offer glasses with optical lenses and special anti-reflective tinting. When making such glasses, a polarizing coating is applied to the optical lenses, after which they are further darkened.

Eye protection from the inside

Glasses for drivers help reduce eye strain and protect against glare and bright sunlight. In addition to special glasses that protect the driver’s eyes from the outside, there are special substances that help protect the eyes from the inside.

It has been established that lutein and its derivative zeaxanthin reduce the time required to restore vision after being blinded by the headlights of oncoming cars at night.

To determine which driving glasses are best for you, visit a specialty store or optician, try on several pairs of glasses and get expert advice. However, remember: even the best driving glasses do not eliminate the need to be extremely careful while driving and strictly follow the rules of the road.

Nuances of choice

Separation of the sun's rays, suppression of the so-called glare interference - this work is performed by polarized glasses. A high-quality product has special filters built into the glass that suppress glare and allow you to see better through a thin layer of water. This model dampens the brightness of the snow and the reflection of trees in the water.

Be sure to pay attention to the following recommendations:

1. Convenience and comfort in operation is the most important parameter when choosing. The glasses fit well, do not fall, and do not put pressure on the bridge of the nose or temples. Therefore, when purchasing, fitting is very important, and this is not done in five minutes.
2. The glasses have fairly large nose pads for fixation.
3. “No” to looseness, wobbly hinges, falling out screws, nuts. Glasses must be reliable.

Beauty is the last parameter that you should pay attention to when choosing. This has no significance for fishing and does not need to be taken into account at all.

@grizzlyfishing.com

Correct frame

For fishermen with poor eyesight, there are special polarized glass clips that are attached to ordinary glasses and perform the necessary functions. Of course, you can order a special system consisting of both diopter and polarized lenses. But this option is expensive and not everyone can afford it.

There are also special attachments for diopter glasses with a lifting and lowering mechanism. But this is not very convenient, since you can accidentally wet the lenses or stain them with dirty hands.

What glass color is preferable?

Experts recommend choosing depending on the weather. Ideally, of course, it is better to have several shades or at least two - black for fishing in bright sun and yellow for fishing in cloudy weather, at sunset or dawn. Of course, there is a universal option. Eyes feel great in brown or gray polarized glasses. Let's take a closer look at the colors:

1. Brown suppresses glare well, the image becomes more contrasty, so you can see any little detail.
2. Gray allows you to fish in real color conditions - the picture is devoid of unnecessary shades, its quality is maximum.
3. Pink will help with frequently changing weather, when you fish either in a wooded area or in an open sunny area. This color makes the picture more contrasty and brighter, but the anti-glare effect is reduced. Therefore, such glasses are recommended only for float fishing.
4. Yellow suppresses blue reflections and perfectly conveys colors when fishing in small bodies of water. At the same time, the quality of the picture is not affected by the level of illumination. You can successfully fish both in cloudy weather and on a sunny day.
5. Blue copes well with glare on sea water, so it is recommended when fishing in large water areas. This also includes mirror glasses.

@tiemco.co.jp

Glass or plastic?

From a safety point of view, glass lenses are hazardous. However, the picture comes out better and clearer. The polarizing filter is built into the middle of the lens by the manufacturer, so it is difficult to scratch or damage it. But such glasses are more expensive, heavier, they can put pressure on the bridge of the nose, which is why the fisherman often experiences discomfort when using them.

Plastic lenses are lighter, cheaper, and difficult to break. But the filter here is usually placed on the top of the glass, and damage can render the glasses unusable. Even an accidentally dropped grain of sand will severely scratch the product.

However, polycarbonate lenses are much more susceptible to curvature, thanks to which the manufacturer can offer the consumer more options for panoramic views and more frame shapes. And technologies are changing, products are becoming more resistant to damage.

Methods for checking for polarization

There are several simple methods to check the quality of the glasses you buy. You don’t need any equipment for this, just a few manipulations, and that’s it.

1. Using a smartphone. Fix the phone on the table, place the glasses with the lens parallel to the screen. Slowly rotate the accessory. If the glass gradually darkens, it means there is a filter in it.
2. With sunglasses. Place the lenses of both glasses parallel. Rotate the polarized glass relative to the regular glass. When you reach a rotation angle of 90 degrees, the lens should darken - this means it has a filter.

Where else are polarizing filters used?

The use of polarized light and polarizing filters in everyday life is much wider than just use in sunglasses. Here are a few everyday examples that many people use in their homes and do not think about the fact that this is polarization.

3D glasses - glasses for watching movies with a 3D effect, they work on polarized image separation. It all works very simply, the visible image (on the TV screen) is divided into stereo pairs (two separate images), which have different polarization (for example, the left image has vertical polarization, and the right one has horizontal polarization).

3D glasses also have two lenses with different polarization (for example, the right lens has vertical polarization, and the left lens has horizontal polarization). The eyes each see their own image, and the brain combines it all together and creates the illusion of volume.

Polarizing filters for cameras - the filter consists of 2 rings, one of them contains a polarizing filter, by rotating which you adjust the degree of polarization. It works the same way as with sunglasses, your photos will be more saturated. For example, if you are shooting a landscape, the clouds will stand out in more contrast against the blue sky, and the vegetation will look more lush.

What is a polarizing filter?

This is a thin (up to 0.05 mm) film, fixed in various ways to the lenses of glasses. Here we are forced to dot some “i’s” with this small “lyrical” digression. In various sources of information, when talking about polarized glasses, cases of such “optical illiteracy” are often admitted.

So, for some reason, the glasses of all eyeglasses are called “lenses”. But if you follow the classical definition, “lenses” are usually called “transparent bodies with a curvature of surface,” i.e. having a magnifying or, conversely, decreasing effect (in simple terms, “glass with diopters”). In our case, we are not dealing with “lenses”, but specifically with “glasses”, therefore here and below the word “glass” is used in the meaning of a component of glasses mounted in the frame, regardless of the material from which this part is made.

The basis of the polarizing film are crystals of various substances with names that are difficult to pronounce for an untrained person - for example, quinine sulfate-iodide. Glass or various plastics are used as a frame for attaching the polarizing film directly. Moreover, this film can be applied both to the surface (the cheapest technical process) and sealed inside the laminated glass of glasses (a more wear-resistant product, but the price is higher). The finished glass with a polarizing film embedded in various ways is called a “polarizing filter” (polarizer, Polaroid).

We do not raise the question of which is better - glass or plastic, especially since manufacturers partially answer it themselves: the lion's share of all polarizing filters offered on the market today are plastic.

Glasses for driving in the dark and in adverse weather conditions

At night, risk factors for drivers include insufficient lighting and, as a result, a decrease in image contrast, as well as glare from oncoming headlights

To improve contrast, it is very important that any transparent medium through which the driver looks (and these are the lenses of prescription glasses and car windows) is as transparent and clean as possible. If a driver suffering from refractive error notices that his vision becomes less clear at night, he should contact a specialist and check how well his glasses or contact lenses meet the requirements for adequate correction

The best option for him is glasses equipped with colorless lenses with an anti-reflective coating, which reduces reflection from the surfaces of the lenses and increases their light transmission, that is, increases the amount of light reaching the eyes.

In adverse weather conditions, such as driving in rain and fog, the driver will benefit from lenses that improve image contrast (left: visibility without glasses, right: visibility with glasses that improve image contrast)

For those who do not normally use glasses, lenses with anti-reflective coatings, like any other, are not recommended to be worn. Some, even young drivers with good vision in poor lighting conditions, develop so-called night myopia, the causes of which have not yet been fully identified. To reduce the effect of glare from the bright light of the headlights of oncoming cars, which negatively affects the driver’s visual functions, wearing glasses with yellow or amber lenses is, in principle, not prohibited. However, some researchers question the benefits of wearing tinted lenses at night and place restrictions on their use.

In unfavorable weather conditions, that is, when driving in rain, snow, fog, the driver can benefit from lenses that improve image contrast. For example, lenses with a special yellow filter: they improve visibility by cutting off the blue light of the visible part of the spectrum, which makes it difficult to focus clearly. Lenses recommended for driving in adverse conditions include, for example, the following brands: ZEISS DriveSafe, BBGR lenses with yellow contrast coloring: Yellow Submarine or Orange Zest, Safe Life yellow lenses from Hoya Vision Care.

Important! It is worth paying attention to the amount of light absorption of such filters. It should not exceed 25% even for daytime driving

Brands of spectacle lenses designed specifically for drivers:

Optical stores in your region where you can purchase eyeglass lenses designed for drivers. Online stores that deliver to your region

Polarized glasses lens material

Polarized glasses lenses can be made of glass or plastic. Each material has its own advantages and disadvantages; it cannot be said unequivocally that one of them is better than the other.

Glass lenses filter ultraviolet rays more effectively, can be made with diopters, are practically scratch-resistant, but at the same time they are much heavier in weight than plastic ones, they are easier to break and they are more expensive.

Plastic lenses are lightweight and cheaper than glass lenses, but they are easier to scratch. In addition, plastic lenses are less harmful to the eyes than glass ones if, God forbid, the lenses of your glasses break on your face as a result of an accident.

The best choice is to purchase polarized glasses with high-quality plastic lenses from a reputable manufacturer. High-quality plastic lenses are made from a hard polymer or have a hard, abrasion-resistant coating that prevents scratches.

The highest quality plastic lenses have the following designations:

• RPC Polarized (hard polymer)
• PPM Polarized and PPX Polarized (polycarbonate)
• PL Polarized (triacetate)
• PH Photocromic
• PCR Polar Chromic

Polarized glasses with diopters

Optics equipped with sun protection film and magnifying glasses are superior to those types of accessories that have only one option. The technology of polarized glasses with diopters is quite complex, so they will cost a lot, but it is worth it. It is even more difficult for a person suffering from myopia or farsightedness to see the details of a landscape or drive a car if an annoying glare is added to a bad picture. Therefore, people with poor vision need polarized glasses with diopters.

Overdose

Excessive consumption of Asparkam often leads to overdose. Overdose occurs as a result of infusion of solutions. It is impossible to cause an overdose of tablets, but they must also be used exclusively under the strict guidance of a doctor.

Respiratory paralysis

An overdose of Asparkam can lead to the following symptoms:

• heart block;
• disturbances in the functioning of the bladder (for example, its weakness);
• bradycardia (slow heartbeat);
• respiratory paralysis;
• nausea;
• vascular collapse;
• lethargy;
• vomit;
• paralysis of the heart muscle, resulting in cardiac arrest;
• lowering blood pressure.

An overdose should be treated by injecting a solution consisting of calcium chloride into the veins. It will eliminate excessive levels of magnesium and calcium contained in human blood.