In summer, people are used to wearing sunglasses to avoid dazzling sunlight, will wearing polarized

No, it's just that wearing it by yourself will affect the feeling of your eyes, and your vision will not be affected.

Sunglasses block uncomfortable glare and protect your eyes from UV rays. All of this is possible thanks to metal powder filters, which "select" light when it hits it. Tinted glasses selectively absorb some of the wavelengths that make up the sun's rays because they use very fine metal powders (iron, copper, nickel, etc.).

In fact, when light hits the lens, it is reduced due to the so-called "destructive interference" process. That is, when certain wavelengths of light (in this case, ultraviolet A, ultraviolet B, and sometimes infrared) pass through the lens, they cancel each other out on the inside of the lens, i.e., in the direction of the eye. It is not an accident that the formation of light waves overlapping each other:

The crest of a wave is combined with the trough of the wave it is close to, resulting in mutual cancellation. The phenomenon of destructive interference depends on the refractive index of the lens (i.e., the degree to which light deviates as it passes through different substances from the air) and also on the thickness of the lens. In general, the thickness of a lens does not change much, while the refractive index of a lens varies depending on the chemical composition.

And the sunglasses should not be in direct contact with the sun.

Ultraviolet rays can damage the cornea and retina, and high-quality sunglasses can completely eliminate UV exposure.

When the eye receives too much light, it naturally constricts the iris. Once the iris has contracted to its limit, then people need to squint. If there is still too much light, such as sunlight reflected from snow, it can cause damage to the retina.

High-quality sunglasses filter out up to 97% of incoming light to avoid injury.

Some surfaces, such as water, can reflect large amounts of light, and this can create bright spots that can disrupt the view or hide objects. High-quality sunglasses can completely eliminate this glare using polarization technology, which we'll cover later.

Some frequencies of light blur the view, while others enhance contrast. Choose the right color for your sunglasses to make them look better in a given environment.

If sunglasses don't provide UV protection, it can expose you more to UV exposure. Cheap sunglasses filter out some of the light, causing your iris to open to receive more light. This also allows more UV rays to enter, increasing the damage caused by UV rays to the retina.

Therefore, there is indeed a difference between the various types of sunglasses. Choosing the right high-quality sunglasses for your specific environment will give you maximum protection.

According to international standards, sunglasses are included in the category of personal eye protection products. The main function of sunglasses is to block out the harsh sun. However, international standards subdivide sunglasses into "fashion glasses" and "general purpose glasses".

The quality requirements for "fashion mirrors" in the standard are relatively low. Because the "fashion mirror" mainly highlights the style, the wearer focuses on the decoration rather than the protective function. The standard has strict quality requirements for "general-purpose lenses, including ultraviolet protection, diopter and prism."

Polarized sunglasses block scattered reflections, glare, and irregular reflections from objects in natural light.

It doesn't affect that sunglasses just reduce the sun's strong rays.

Of course not, if it affects the line of sight, then no one will wear it.

No, because it just changes the comfort of wearing.

It doesn't affect, but it just filters the exposure of strong light.

Of course not. Polarized sunglasses are simply able to block out glare.

Polarized sunglasses are like blinds that allow light to pass through in only one direction, effectively removing and filtering out scattered light from the beam.

It doesn't matter, the sunglasses just reduce the intensity of the sun's ultraviolet rays a little.

No, polarized lenses have polarizing properties, so they can completely block glare caused by various factors such as scattering, refraction, and reflection.

No, polarizers are lenses made according to the principle of polarization of light, which are used to filter out scattered light in the beam, so that the light is transferred from the normal transmittance axis to the eye, so that the vision is clear and natural.

I think that long-term exposure to the sun will burn the eyes, cause edema of the eyes, cause retinal deformation, and cause short-sightedness due to simple fatigue of the eyes.

It is also simple to prevent astigmatism and strabismus. So sunglasses should be worn.

Wear sunglasses when basking in the sun, ultraviolet rays will cause damage to the eyes: if we compare the eyes to the window of the soul, then the outermost layer of the transparent cornea is the window glass, the cornea is particularly important for people's glasses, and this is fragile, because the cornea contains a large number of nerve companion system, this nervous system in the long-term ultraviolet lamp irradiation, will also undergo transformation, due to the nervous system is harmed, the patient will have severe pain, and unbearable, In addition, there will be corneal pigmentation, and there will be discomfort such as blurred vision.

In addition, under long-term ultraviolet lamp irradiation, it will also lead to inflammatory reactions such as subconjunctival hemorrhage and edema, and will also cause secondary pain symptoms, long-term direct exposure to ultraviolet rays, whether it is to the cornea or conjunctivitis, the damage is obvious, and it will also greatly accelerate the process of glaucoma in patients. Ultraviolet light has a harmful effect on the eyes, too much direct ultraviolet light may cause conjunctivitis, corneal and corneal damage, and noisy acres of ultraviolet light are the main culprits of senile cataract.

In summer, ultraviolet light is strong, you must wear goggles, it is highly recommended to have a technical professional bright moon fade film, there is no color in the room, and it becomes dark brown under the strong outdoor light to prevent ultraviolet light from damaging the eyes, and at the same time, it can also have a mirror commonly used as a convenient and fashionable. The harm of ultraviolet light to people's eyes is important in these four aspects, and we must pay special attention to it, do a good job in scientific research and safety precautions, reduce damage around the eyes, and ensure our own health.

If there is an eye disease around the eye due to ultraviolet rays, then it is necessary to do a scientific and reasonable ** immediately, and only then can reduce the symptom damage. In addition, during the diagnosis and treatment period, patients should also pay attention to scientific eye use to avoid fatigue around the eyes. In addition, you can also eat more foods that are good for the health of the eyes, such as chrysanthemum, sweet potato, corn, egg yolk, carrots, kale, etc.

1. Acute ultraviolet damage: Acute ultraviolet damage mainly refers to the damage caused by a large amount of ultraviolet rays entering the eye in a short period of time. Prolonged exposure to ultraviolet rays or welding, as well as prolonged snow swiping without eye protection, can cause the cornea to be exposed to a large amount of ultraviolet light, causing eye burning, photophobia, pure leakage and tears, eye redness, and other symptoms.

2. Chronic ultraviolet damage: Chronic ultraviolet damage mainly refers to eye diseases caused by long-term exposure to ultraviolet rays. The most common eye disease is pterygium, which is mainly seen in patients who work outdoors for a long time.

Ultraviolet rays can induce eye diseases, which can lead to cataracts, or prolonged exposure to the conjunctiva, which can damage the lens.

Long-term exposure to ultraviolet rays can make the eyes very sore, produce a teary feeling, and may also have a severe burning effect, which can cause the flaky corneal epithelium to fall off.