Do Polarised Glasses Block Uv?
Tue, Apr 12, 22 By : Koalaeye
About SunReaders ® These oversized square SunReader women's sunglasses designed by Sofia Vergara and Foster Grant is made of high-light plastic and are very cool. The shiny metal trim on the hinges ensures a delicate finish, while the scratch and impact-resistant lenses provide 100% UVA and UVB sun protection. What Are Varifocal Glasses? Varifocal glasses, also known as varifocals, varifocal lenses, PALs, or progressive lenses, have a gradual change in strength from the top of the lens to the bottom...

About SunReaders ®

These oversized square SunReader women's sunglasses designed by Sofia Vergara and Foster Grant is made of high-light plastic and are very cool. The shiny metal trim on the hinges ensures a delicate finish, while the scratch and impact-resistant lenses provide 100% UVA and UVB sun protection.


What Are Varifocal Glasses?

Varifocal glasses, also known as varifocals, varifocal lenses, PALs, or progressive lenses, have a gradual change in strength from the top of the lens to the bottom with multiple focal points in between. This allows you to see all distances and focus points through just one lens. Varifocal lenses are typically used when you have two prescriptions, one for distance and one for reading.

There are three regions of a varifocal lens which are distant zone, intermediate zone and, near/reading zone. Usually, the upper portion of the varifocal lens is the distant zone and the bottom portion of the varifocal lens is the near or reading zone.

One of the benefits of varifocal glasses is that you do not need to prepare 2 separate pairs of glasses or need to switch between frames for different vision needs.



About Non-polarized Sunglasses

Non-polarized sunglasses block only commonly strong light and filter ultraviolet rays. And the efficiency of its filter ultraviolet ray is lower. But you know, in our daily life, in addition to strong light and ultraviolet light, the light through the uneven road surface, water, and other places will also produce an irregular diffuse reflection of light, so that the human eyes will suffer blurred vision, fatigue. Generally speaking, for a short period of outdoor sports, the non-polarized sunglasses can already meet your needs.


How much does it cost to change the frames?

The price of changing a glasses frame is very different, from tens of yuan to thousands of yuan, mainly to see the quality of the glasses, material, and so on. Still, you should think about: the use of fixed a number of years of glasses if the glasses have wear and tear if it is worth to change.



How to buy prescription glasses online

Consumers should choose different styles of frames according to their age and professional characteristics. Because everyone has different face shapes, different interpupillary distances, and different diopters, the size of the frames should vary from person to person.

Lenses are divided into glass lens, resin lens, and PC lens, and you can choose according to your preferences. The glass lens has a stable refractive index, good abrasion resistance, and stable optical performance, but it is relatively heavy and easy to break. Resin lens with high light transmittance is light, safe, and not easy to break, but the surface is easy to wear. PC lens has a high refractive index, but the surface is easy to wear.


Choose a frame for your face

People with round faces should try to avoid round frames, which can make your face look fatter. You can choose a square frame, having a decorated effect, and can make a person look more energetic. Circular lenses are recommended for square faces. Rectangular faces are also suitable for circular lenses. There are not too many restrictions on the choice of lenses for heart-shaped faces. Circular or square pieces are very appropriate, but you can choose slightly larger frames to add momentum and can create a retro sense.



What kind of frames can working women choose?

If you are a heart-shaped face, the selection of the frames is different. Of course, to look relatively stable and mature, you can choose some simple frames, like square frames. You can choose gold or black gold, black silver line. Or the kind of slightly Japanese style of small round one, looking more literary and young. The frame can choose pure titanium, relatively light and quality will be better. The choice of the frame should be carried out according to the different working environments. If you are a teacher or doctor, you should choose low-key, elegant frames. If you're a freelancer who needs to show off your personality, you can pick up trendy frames.

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