Do cheap glasses damage your eyes? | KOALAEYE OPTICAL

Do cheap glasses damage your eyes?

Recommended Glasses for Heart Shaped Face

Wayfarers frames: to balance out a wider forehead is by finding frames that have wide, prominent endpoints that extend out past your temples. This can draw the gaze up and away from your cheekbones, making your eyes the focal point. So, the wayfarers frames are recommended.

Cat-eye frames: if you do not know how to choose the best glasses for heart shaped faces, you can try the cat-eye frames glasses. They can be quite versatile and help contour your face, either balancing or highlighting prominent features.

Aviator frames: the last glasses for heart shaped face we want to recommend is the aviator glasses. They can work to draw the eye downwards and flatten the bottom part of your face. The aviator frame glasses can also add a balanced look and soften prominent angular features.


Why are some glasses expensive and others cheap?

Lenses do not regulate vision, but some progressive lenses can help the ciliary muscles to adjust. The quality of the lens is mainly determined by the transmittance, the surface, the aspherical surface, the refractive index, the coating quality.

The higher the refractive index, the thinner the lens, and the more expensive the price, for some people with high degrees, the lenses also play an aesthetic role. Commonly used are green film, and some are purple film, gold film, etc. How much cheaper is a relative number, and there are many other factors to consider besides price.



What are the benefits of the TR-90?

Impact resistance is more than 2 times of nylon material, in order to effectively prevent the damage to the eyes caused by impact in the movement. It has high-temperature resistance. It's very elastic, and it doesn't deform.The use of thermoplastic materials in these frames provides pretty strength due to their flexible characteristics. It is not easy to deform and change color, making it wear for a longer time. Having no release of chemical residues, it is in line with the European requirements for food-grade materials. The weight is less than half of the weight of the plate frame, 85% of nylon material, reducing the burden of nose bridge, ears, and making wearing more comfortable.


The function of eyeglasses cloth

Under a powerful microscope, the fibers of the cloth are more closely arranged than those of ordinary cloth, and the material itself is softer than ordinary cloth. That's because eyeglasses under the eye are almost always coated, with each standard lens having seven layers of different functions on the front and back surfaces, to extend lens life. It can thoroughly remove the stubborn stains left on the lens to make the picture clear. It can clean all kinds of glass, resin, and other materials of glasses, glass mirrors, and other mirror surfaces, remove stains, and grease absorption.



Are carbon fiber glasses good?

Carbon fiber glasses are continuously changed to meet consumer demand. Adhering to the use of carbon fiber, they are more in line with the requirements of environmental protection and health. In the design of the new carbon fiber products, the weight of the bridge of the nose is further reduced when wearing, making it more fit and comfortable. Should you choose carbon fiber glasses or titanium glasses? It depends on your preference, ?like style, color, material, price, and so on. Because they are very not heavy, carbon fiber glasses are the most comfortable option for everyday wearers who are looking for the latest technology and the highest quality.


What Are the Advantages of High-Index Lenses?

In this section, we will show you the advantages of high-index lenses.

  1. Thanks to the slim shape and narrow edges, high index lenses offer wearers the flexibility to choose from a wide array of fashion-forward frames. Their size means that they can be easily paired with sleek metal frames or incorporated into rimless eyewear for an attractive barely-there look.
  2. High index lenses are more comfortable for extended use because they are lighter than the traditional counterparts.
  3. High index lenses are available with many of the same options as traditional lenses. For example, they can be either single-vision or progressive.
  4. For users with strong prescriptions, high index lenses mean no bulky, bottle-glasses appearance. This can reduce the unwanted bug-eye look traditionally associated with very thick lenses.

However, there are some negative voices of high index lenses.


Precio de ventaDesde
Precio de ventaDesde


Note the ratio of the lens to the face.

Usually, the vertical length of the lens of longer glasses can have a visual effect of reducing the proportion of the face. In addition, in the selection of the glasses, you should pay attention to the distance between the end of the eye and the glasses so the best ratio is that the eye is in the middle of the glasses.

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