Choose lenses with glasses and often go online which is good to say the model

The brown green light you said belongs to colored lenses, and the green one means that the reflection of the lens is green, and the following is a detailed introduction.

Green film: fluoride to increase light transmittance.

Blue film: good radiation resistance.

Purple film: metal ion film, taking into account light transmission and shielding of medium and high frequency radiation, the film itself has conductivity and shielding functions.

Material. 1) Coronal glass: refractive index, has the ability to absorb ultraviolet rays, and is suitable for spectacle lenses of any power. Lenses are not easy to scratch, economical and practical, cheap, and are currently the most commonly used one.

2) Flint glass: lead-containing, soft texture, high refractive index of light, suitable for making bifocal glasses for the near part.

3) Specific optical glass that avoids colored light: adding different appropriate amounts of oxide to the colorless lens glass can produce different colors: adding manganese oxide produces light grape red, adding chromium oxide produces green, adding nickel oxide produces blue-red, and the commonly used brown brown lens is added with nickel oxide and cobalt oxide.

Tinted lenses are only suitable for flat lenses or lenses with equal or similar diopters in both eyes, otherwise the color difference on the lens will be caused by the inconsistent thickness of the lens in the two eyes, which is uncomfortable and unsightly to use.

4) Plastic lenses: Plastic lenses are light in weight, safe and unbreakable, anti-ultraviolet, anti-fog, and rich in lens colors, but the lenses are easy to wear and fluff as their disadvantages. Therefore, the surface hard coating is very important, and most of the fake and shoddy products are insufficient hard coating.

Stylish tinted lenses.

Eyewear has penetrated into the lifestyle sector as part of the personal image. Colored lenses are sought after for their refreshing charm with a statement color. The rich colors of colored lenses are made of resin and can be broadly divided into two categories:

1. Light gray, brown, etc., these colors have little impact on the color of the scenery after wearing, and can achieve the effect of scene fax, especially suitable for drivers to wear;

2. Purple, green, yellow, light pink, etc., these colors will make the wearer's eyes shine after wearing, especially suitable for young people who pursue individuality.

Color lenses should be matched beautifully and complement each other according to the face shape, skin color and frame color, and the power is too deep, it is best not to choose color films, because the power is deep relative to the thickness of the lenses, and the color of the lens thickness will also deepen, which will have a certain impact on vision, and the color film will be worn indoors due to the change of indoor light degree is easy to cause color distortion, so it is recommended to prepare two pairs of glasses indoors and outdoors to ensure that you can enjoy the best visual effect anytime and anywhere.

It depends on how you buy, some people buy online, some people go to the store to buy, but if you find one that has a physical store, it's fine. You go to **.com to see a 1 optical store called "Ideas", I bought it there, **you can't think of it cheaper, ***! By the way, that Wangwang is called Mei Jiao Niang 2843 You can also ask him for a gift, I bought it there.

65 radiation glasses, went to the store and asked, they said to ask for more than 400+. I bought it at 65! ~!

He has a certificate in glasses and has 10 years of experience

The types of myopia spectacle lenses can be divided into inorganic materials and organic materials from the materials used; From the development of myopia spectacle lenses, it can be divided into: natural crystal lenses; optical glass lenses; Optical resin lenses.

The lenses that can best protect the eyes while correcting myopia are the best spectacle lenses for myopia.

Which lens is the best for myopia glasses needs to be considered from three aspects: imaging effect, whether it prevents eye fatigue, and whether it prevents harmful ultraviolet rays. The crystal piece can not effectively prevent ultraviolet rays, and there are many natural minerals and impurities in it, and the optical imaging effect is not good, and it has been basically eliminated now; The glass lens is not UV resistant enough to 350nm, while the wavelength of the blue ultraviolet is 295-380nm; Plastic lenses may protect against UV rays between 350nm and 380nm (some can protect against UV rays above 380nm).

Of course, there are many kinds of films to choose from, and after adding film treatment, it can increase the surface hardness of the lens, prevent eye fatigue and other functions. At present, the most used myopia Li Liang spectacle lenses on the market include glass lenses and optical resin lenses. Glass lenses have high hardness and good wear resistance, and generally their quality and various parameters will not change over time.

The selection of spectacle lenses is as follows:

1. Choose lens material. Lens materials are mainly divided into glass, resin and PC, although the optical properties of glass lenses are good, but fragile, there are hidden dangers to eye health, and there are very few people with glass lenses now. More and more people are choosing resin lenses, both for performance and health reasons.

It's all good. Plastic lenses are more expensive than glass and PC lenses, but there are also grades of plastic lenses.

2. Choose the spherical nature of the lens. As people's understanding of the eye deepens, they find that our eyes themselves are not a normal spherical shape, so the lenses that adapt to this non-normal spherical eye are called aspherical lenses.

Aspherical lenses can help us achieve better visual quality, and aspherical lenses are also thinner and clearer than spherical lenses of the same power, which is suitable for people with height.

3. Select the refractive index of the lens.

The lenses are marked with .A value of 74 refers to the refractive index, and the higher the refractive index, the thinner the lens with the same power. ** Will also climb significantly. Moreover, the higher the refractive index, the dispersion.

The more powerful, the more visual effects will be reduced.

Types of lenses:

1) According to different materials, it can be mainly divided into glass lenses, plastic lenses, PC lenses, etc. The essential difference between the three is that the materials used to make them are different, so that their optical structures and properties are also different

2) According to the use function, it can be divided into daily general lenses, protective lenses, multifocal lenses, etc. Everyday Universal Lenses are the most widely used optical lenses. There are many types of protective lenses, including anti-blue light lenses, sunglasses, polarized lenses, intelligent self-color-changing lenses, sports lenses, etc.

These types of protective lenses are mainly processed or added with special coatings to protect the eyes in special environments, such as sunglasses, which absorb part of the wavelength bands that make up the sun's rays with the help of metal powder, blocking uncomfortable bright light.

3) According to the curved surface processing, it can be divided into spherical lens and aspherical lens. The aspherical lens has a flatter base bend and lighter weight, which makes it look more natural and beautiful; In the case of high diopters, it can reduce the distortion of the eyes, and for consumers with high visual power, aspherical lenses may be more suitable.

Which is the best myopia spectacle lens: choose the myopia lens that suits you, the substrate film of the lens.