What are the 4 types of glaucoma? | KOALAEYE OPTICAL

What are the 4 types of glaucoma?

What are halo eyes? Leiendo What are the 4 types of glaucoma? 5 minutos Siguiente how do you read an eyeglass prescription?

GlassesShop

It provides men's glasses with good quality and low price. The existing frames have plastic materials to metal. They provide you with a variety of men's glasses like rectangular glasses and round glasses. The glasses have a classic rectangular shape and design. Made of not heavy and durable high-quality materials, they can adapt to a variety of style preferences. A rectangular shape adds clarity, while sharp lines may complement the soft facial features.


Translucent colored sunglasses

Sometimes we opt for sunglasses to hide gaunt dark circles and no-makeup eyes, and when we want to wear sunglasses with delicate makeup, the translucent texture seems to be the best choice. The translucent shades that were on show this year were more colorful, like another layer of eye shadow. You can instantly choose from a wider range of colored sunglasses, which can be paired with a variety of colors according to your style and come with a retro filter effect.



The Pros of Progressive Lenses

In this section, we will show you the benefits of progressive lenses.

One of the major advantages of progressive lenses is that the design of progressive lenses blends the prescription. There is no image jump or visible line on the lens. This enhances your comfort with your lenses and can be safer when performing tasks such as driving.

With progressive lenses, you don’t have to switch other glasses frequently. Progressive lenses correct distance, intermediate, and reading vision within one lens. So, it can bring you great convenience.


Should I wear driving glasses at night?

In fact, it is not safe to use any colored lenses while driving. You might consider how much color plays in your average driving experience. Red, yellow, green, orange traffic signs, and other vital signs are designed to remind you to pay attention to safety signals and directions while driving. However, if you see everything turn yellow, you may miss a sign and end up making the wrong decision at the traffic light, or worse, an accident.

Another disadvantage is that they do not have a prescription. If you are looking for a pair of standard night driving glasses on the market, you will find that most of them are standard over-the-counter glasses. To have night-driving glasses that can correct vision, you must customize them in an optical shop, and the price is much higher. Under the hype of the night vision feature, you can expect the cost of prescription night driving glasses to be too high. You can find more information about how prescription glasses work on our blog!



What Are Polycarbonate Lenses?

Polycarbonate lenses are made from a type of plastic that is famous for its durability. Polycarbonate lenses are perfect for those who are doing sports while wearing glasses. It is also used in children’s glasses since kids are much less careful with their glasses than adults.


What is blue light?

To prevent blue light, we must first understand what blue light is. The visible light with a wavelength range of 400-500 nanometers is called blue light. The light sources used in daily LED lighting and display products, including mobile phones, flat panels, and TVs, are mostly LED light sources excited by blue light. However, not all blue light is harmful to the human body. The human eye has an extremely low tolerance to blue light radiation in the 400-440 nanometer range. When the light intensity enters this threshold, photochemical damage is likely to occur. However, blue light radiation in the range of 459-490 nanometers is essential for regulating the human body's circadian rhythm and can affect the secretion of human melatonin, which in turn has an impact on the body's biological clock, alertness, and mood.

Scientifically effective anti-blue light lenses must not only block harmful blue light but also cannot filter beneficial blue light. Most of the ineffective anti-blue light products on the market currently have two types of problems. One is that there is almost no protective effect on the blue light in the vulnerable zone of the human eye. The other is excessive protection, shielding the blue light spectrum in the beneficial band so that the blue light that is beneficial for physiological adjustment cannot enter the human eye. At the same time, the color of the lens is yellow, which is prone to color shift, aggravating visual fatigue, and even inducing the risk of myopia.


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The production of carbon fiber glasses is complicated.

Designing carbon fiber glasses was a slow and complicated process. These processes are not fast in material, force, or appearance. Resin is the key to the quality of carbon fiber. Adding resin to carbon fiber can change the material into composite material. Manufacturers of these composites want to use the least resin to hold the carbon fibers together.

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