How can I tell if my glasses are polycarbonate? | KOALAEYE OPTICAL

How can I tell if my glasses are polycarbonate?

what is the average pd for a child? Reading How can I tell if my glasses are polycarbonate? 5 minutes Next why are ray bans so expensive?

Marc Walks pure titanium rimless glasses

The detailed processing lets you experience the perfect quality. They areβ titanium pure titanium ultra-light rimless myopia glasses, the new silica gel temple tips, and rivet design, and they will not deform with many twists and turns. The silicone material is safe and non-toxic. They have a non-screw design, so installation is not loose, and the lens is stable and not shaking. The lens is not in direct contact with metal and is not easy to break. The degree is not limited, so 1500 degrees below can be installed.


How to Choose Glasses for Big Heads?

In this section, we will show you how to choose an eyeglasses frame for large heads. If you do not know how to choose, keep on your reading to find some solutions.

Rectangular frames: Rectangular frames add angle and can slim down the appearance of a larger head. So, if you have a big head, try the rectangular frames glasses.

Oversized frames: if you have a big head, the oversized frames would be a good choice. Oversized glasses will balance out your larger features.

Wayfarer frames: whether your style is retro or geek chic, you will find a perfect fit in trapezoidal wayfarer. The thick angular frames offset rounder cheeks and draw attention down from the forehead. So, if you have a large head, try this style.

When choosing glasses for large heads, you should also find the right shape and color for your signature look and style. While there are a lot of glasses styles for big heads, you should consider glasses with long enough temple length, the length between the hinge of your frames and where they bend around the ear. This measurement is critical for overall comfort, especially on your temples and near your ears.

So, from the above information, you have learned how to choose glasses for big heads.



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.


How Do Progressive Lenses Work?

In this section, we will show you how progressive lenses work. With digital progressive lens, there are dozens of incremental prescriptions between the distance and reading sections. You have to point your nose at what you are looking at. However, it is difficult for some people to get used to the progressive lenses and it may take some time to adapt to them. You can read the post: How long should it take to get used to progressive lenses to learn more.

Because progressive lenses work like how your eyes do, many people prefer them over bifocals. They also have more lens options such as colors and materials than bifocals, so they are becoming more popular.



Choose the frame according to the hairstyle

If there are bangs, the upper edge of the frame should avoid contact with hair. If it is curly hair, it should be noted that the frame should not be too large so that the frame edge contacts the hair.


Buy Glasses For Kids - Appropriate Frame Material

Metal and other materials are heavy, easy to rust, easy to deform, easy to lead to children's facial allergies, and oppression of the bridge of the nose and temple. Resin glasses are colorful, and the price of the material is beneficial. Because the child is in the development period, glasses are changed more frequently. Therefore, summarizing the above factors, the resin frame is the most suitable for children to wear. A high degree of myopia must choose a small frame. If the child's myopia or farsightedness is high, the lens will be very thick, so be sure to choose a small frame. Because the frame type is small, coupled with the lightweight of the resin frame, it has better fixing performance than other materials.


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What is the best lens material?

Crown glass was first used to make lenses. The glass melt was blown into a crown, or hollow sphere, and then reheated in the center of a rapidly rotating plate, which was then unrolled and flattened by centrifugal force. Flat and thin edges are cut into suitable shapes to make window panes. The circular bulge in the middle is the prototype of the lens. The glass material used to make lenses was originally colorless transparent glass with a refractive index of 1.523. Other substances were added to the lens to improve its ability to absorb ultraviolet light.

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