Why Do Blue Light Glasses Have A Yellow Tint? | KOALAEYE OPTICAL

Why Do Blue Light Glasses Have A Yellow Tint?

What diopters do rimless myopic glasses suit?

What diopters do rimless myopic glasses suit? It suits myopic diopters to be used by people with diopters of 600 or less than. Usually, the high diopters are 500, 600, or above, Rimless glasses can see the lens directly. The higher the diopters, the thicker the lens. Secondly, in rimless glasses, sunlight can shine in from the axis of the lens, resulting in a dispersion effect, which has a certain impact on viewing. Thirdly, rimless lenses, without the protection of the rim, are easy to be scratched and broken, so they need to be carefully protected and stored. So to sum up, people with the diopters of 500 or 600can choose myopia rimless glasses. But it is not recommended to choose rimless glasses for people with diopters of more than 800.


What style of glasses is suitable for round faces?

The model of cat-eye glasses is niftier, with a more retro effect, so the fashion sense is strong, which can highlight the personality of the person. The glasses can modify the face, suitable for the girl with a round face. If you have a round face, it is recommended that you choose a pair of glasses with thick frames, which cover your face more and make your face look smaller visually. They fit all kinds of face shapes, especially round faces because they give people a visual impact, and they reduce the impression of face shapes.



An unlimited discount is not reasonable.

5 discount, 3 discount, 1.5 discount, we can see that glasses category discount is lower and lower. But glasses are not consumable, like cell phones, appliances, or even less frequently than they are. Because, unlike consumables, it has an incompressible cost structure. Behind such discounts, there is sometimes the marketing strategy of raising the price of glasses first and then lowering the price.


The inadequacies of bifocals

The field of vision is smaller than that of the single vision lens, especially for the close view. For example, reading and reading newspapers need to make it coordinated with the head movement, there are optical defects of image jump and image displacement. There is a boundary, and it is easy to be seen that wearing a bifocal lens exposes age. Bifocals clearly demarcate the near and far regions, affecting appearance and vision. And when far view and close view change, the objects will jump. Because most myopic patients have a lag in the adjustment response, wearing bifocal lenses not only does not delay the development of myopia but has side effects. Therefore, bifocals are not suitable for teenagers to control myopia, and only a few special patients need to wear bifocals.



How to Choose Glasses for Round Faces?

Before proceeding with how to choose glasses for round faces, you need to what your face shape is. The round face shape has fuller cheeks which can give a more youthful appearance. The chin is rounder and the forehead widens at the top. In some cases, the jawline is softer than other face shapes. However, if you do not know what your face shape is, you can click here to check.


If you need reading glasses when using a computer, you may want to choose a lower reading glasses power. This is because most people view their screen from a greater distance from their eyes than when they are reading a book or a magazine.

However, if you need reading glasses for looking at something very close or very small, you may need a pair of stronger power glasses.

In most cases, when two reading glasses’ powers seem equally suitable, choose the glasses with the lower power. Picking reading glasses that are too string typically will cause more discomfort problems than reading glasses that are a little too weak.


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Can you wear blue light glasses while driving?

The damage of blue light has a cumulative effect. The longer the exposure time is, the more serious the damage of retinal cells will be, which will eventually lead to irreversible damage of the structure and function of the retina. Once the retina has permanent damage, degeneration will directly affect the metabolism and function of photoreceptor cells, resulting in vision loss. It depends on the glasses you're wearing. The function of anti-blue light glasses depends on the material of the glasses. Some blue light glasses have a special anti-reflective coating, which can reduce glare. These glasses are definitely helpful when driving at night.

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