What Are Category 4 Sunglasses? | KOALAEYE OPTICAL

What Are Category 4 Sunglasses?

Why are titanium glasses expensive?

One reason is that the current titanium raw material cost is too high. The other reason is that the production of titanium frames is very complex. The production of titanium glasses requires special processing equipment, special welding technology, and electroplating technology, and many difficult and different processes, so it has a high production cost.

With the emergence of new titanium glasses production equipment and the improvement of production and processing technology in the industry, the price of titanium glasses will become lower and be available to a wider range of people.


Comfort of Glasses

The most important thing when shopping for glasses is comfort. When you choose, you must try it on to see if you feel any discomfort. Whether the glasses can be well put on the upper part of the bridge of the nose, and whether they are light enough and will not cause any burden on the opposite side. In addition, you must see if there is any feeling of dizziness.



Semi-rimless glasse look more stylish.

Semi-rimless glasses are very stylish and more creative than rimmed glasses. Women looking for the perfect glasses will look more elegant and stylish in these glasses. The semi-rimless glasses are designed to make the wearer look the smartest. They are much better than rimmed glasses because they make you look more creative.


How to Know If You Need Bifocal Glasses?

As you get older, you will find that is more and more difficult to read or focus on things that are really close up. This is called presbyopia and it is a common eye condition among older people.

How to know if you need bifocal glasses? If you find yourself squinting at the text that once was easy to read or your vision is blurry, you may need to see an eye doctor. In this situation, you may need bifocal glasses to correct your eyes.

If you currently wear glasses but see print more clearly when you remove them, it is a sign that you may need bifocal glasses in the future.

To know if you need bifocal glasses exactly, check your eyes by an optometrist or ophthalmologist.



Best Eyeglasses For Women - Seiko glasses

Seiko frame pursues the perfect combination of elegant fashion and high-tech, providing people with excellent quality, fashionable style, and high comfort products. Seiko pure titanium eyeglass frame is the most noteworthy, and it is very rigorous in the selection of materials, high hardness, good quality. Women's spectacle frames adopt the world's popular carved design, making glasses practical and beautiful already.No matter you are engaged in what kind of occupation, they can highlight your noble temperament. They make the wearer feel comfortable, and at the same time, let each wearer can send out a distinctive temperament and taste.


How Should Glasses Fit?

Make sure your pupils align correctly. The combination of frame, arm, bridge, and lens measurement can affect the placement of your pupils within your lenses, which is essential to the proper function and comfort of your prescription. To ensure glasses fit properly, the pupils should align horizontally in the center of your lenses.

Also, you should consider your face shape. When choosing a pair of suitable glasses, you should consider what face shape you have.


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The safety role of glasses

Labor protection glasses can help professionals to prevent accidental injuries while working. The main role is to protect the eyes and face from ultraviolet, infrared, and microwave electromagnetic radiation, dust, metal and sand debris, and chemical solution sputtering damage. Many young people like to play computer games, so the eyes are easy for to occur myopia, but radiation glasses can reduce radiation. Chemical solution protection glasses are mainly used to protect eyes from chemical damage caused by irritating or corrosive solutions.

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