What vision is legally blind? | KOALAEYE OPTICAL

What vision is legally blind?

GlassesUSA lenses

GlassesUSA provides a variety of lens options, including UV and anti-glare filter coatings, which may reduce eye strain from digital device use. The freight is included. Rush Shipping can charge a small fee. This is good for people who desperately need new glasses or contact lenses.


BLUPOND night driving glasses

TAC Semi-polarized Blue light goggles are designed to change your perspective to yellow with computer blue light polarization. Anti-glare high-definition vision blue-blocking glasses protect eyes from blue light and reduce the contrast of bright blue/white glare and flash. The anti-glare night glasses limit distortion. In addition to polarized driving glasses, you can receive a night vision glasses accessory set, with the EVA glasses hard case, screwdriver, sunglasses bag, microfiber cleaning cloth, glasses clip, and night driving glasses gift box.



How to Choose Reading Glasses?

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.


Types of Optical Frame Glasses

The full-frame glasses have good strength, suitable for athletes and children to wear because the lens is completely protected by the lens ring. They are suitable for a variety of refractive parameters of the lens. The upper part of the lens ring is made of metal or plastic materials. The lower half of the lens ring is made of a very fine nylon wire like the lower part of the lens ring. Rimless glasses are lighter than full-frame glasses. Rimless glasses can be divided into parts type and integral type. The part type consists of a nose bridge (together with the nose pad) and two temples. The combination glasses are divided into two parts. Usually, the front group is equipped with colored lenses, and the rear group is equipped with lenses for correcting refractive errors. The folding glasses can usually be folded at the bridge of the nose and the temple to reduce the space when stored or carried and are mostly used for making reading glasses.



Can You Wear Blue Light Glasses All Day?

Can I wear blue light glasses all the time? You may also have the query. To answer this question, you need to know one thing that the blue light isn’t inherently bad for you but an excess of blue light will lead to some negative effects.

The natural sources of blue light from the outdoors and from sunlight is good for you. In addition, since the HEV wavelengths is important to our moods and sleep rhythms, blue light can be used to treat seasonal effective disorder and other mental health issues.

The blue light glasses is used to guard against artificial source of blue light that deliver excessive amounts of this wavelength to your retinas. So, if you need to stay daytime hours under artificial light or working at a computer, you had better wear your blue light blocking glasses during the day.

So, is it bad to wear blue light glasses all day? The answer is negative.


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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Choose blue light glasses with better quality lenses and frames.

Pay attention to the choice of true color lenses.0-12-year-old children are in the critical period of growth, and the color and things are in the cognitive stage. Blue light-blocking glasses should restore the true color as far as possible, with no blur. And it will not have a color difference. Pay attention to the strength of blue-light-blocking glasses. Choose a strong and flexible frame.

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