What is highest eye prescription? | KOALAEYE OPTICAL

What is highest eye prescription?

How to Find Reading Glasses Strengths?

With the increase of age, your vision may begin to decrease and this is an inevitable change in your life. So, when you are trying to decipher some smaller prints, you may need the reading glasses.

When your vision begins to decrease, do not worry, this is a normal change. You will find that the deterioration insight often occurs around the age of 40. The technical term for this condition is called presbyopia, a natural, age-related change in the lens of the eye which makes it more difficult to focus on smaller print and close-up objects.

The condition may become worse as you are near 60 years of age, depending on the type of near distance tasks you performing. Of course, you also need to consider the actual situations.


Blue light blocking glasses lenses and common glasses lenses have different colors.

The real blue-light-blocking glasses should be yellow. Based on the primary principles of optics, the light reflected from the lens is the light that resists the same color as it. As the name indicates, blue light is to prevent the reflection of blue light. Remove blue light, and all the red, yellow, blue, and green in visible light is yellow.



Allen OTG Safety & Shooting Glasses

Chemistry LABS and carpentry aren't the only applications that need safety goggles on top of glasses.These Allen OTG glasses work better on indoor shooting ranges. You can use these comfortable safety glasses to better focus your front view. Unlike the other OTG safety glasses on the list, these glasses lie flat on the side of your head and are specially designed to fit comfortably under the earmuffs without breaking the noise seal.


Pay attention to the purchase of driving glasses.

A few points need to be kept in mind to avoid the risk of accidents. The frame should not exceed the size, because the researchers say the lens color should be gray or brown, so you can choose the aviator sunglasses, compared to other series. Aviator Sunglasses are always classic. There are plenty of cool experimental design glasses to choose from every year on the market. The selection of polarizing mirrors can filter the scattered light in the beam, remove stray light so that the light can be reflected into the eye from the right direction of the optical axis. The field of vision is clear natural. Light is adjusted in the same direction as light and reflects into the room, so the natural scenery looks soft and not dazzling, especially when driving a car or doing outdoor activities. It will affect the judgment of the object and cause danger, what’s more, long-term direct stimulation by the sun will lead to the decline of vision, the formation of myopia, hyperopia, astigmatism, or cataract.



Injection frame

Acetate cellulose pellets are extruded by an injection molding machine, which is called an injection frame. Its characteristic is that it saves raw materials, can be mass-produced, has a lower cost, and is cheaper than a plate rack. But the firmness is not as good as the plate frame. However, injection frames are mostly used for glasses for the elderly and children because of their lightweight and resistance to allergies. The injection frame is made of laminated plastic. It is made by pasting a thin layer of plastic of one color on another thicker layer of plastic. Thick materials are mostly transparent pigments. It is also made of three or more layers of plastic.


Glasses for heart-shaped faces

This type of face has a wide forehead, broad cheekbones, and a pointed chin. It is called a heart-shaped face. The upper part of the heart-shaped face is relatively wide and flat, and the lower part of the line is uniform and smooth. The facial line, the proportion is very soft, giving a person an intimate intuitive feeling. Wearing longer or rimless glasses for this face shape will make you look cute.


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Myopia Glasses

Glasses are lenses used to correct vision or protect eyes. It is not only an eye protection product but also a cosmetic decoration. Nowadays, there are more and more varieties of glasses, and the classification is getting more and more detailed. In addition to myopia glasses, reading glasses, and sunglasses, it also includes driver protective glasses, computer protective glasses, leisure goggles, and sports goggles, which are suitable for special industries, special work, and leisure and entertainment. Moreover, the progress of the times promotes the maturity of people's consumer psychology. Consumers pay more attention to the diversification and individualization of products. The demand for glasses has risen from a single level of vision care to three-dimensional consumption spaces such as humanities and aesthetics. This will stimulate the research, development, and sales of new varieties and new styles of glasses, and bring new opportunities for the development of the glasses retail industry.

Myopia glasses mainly include frame glasses and contact lenses. With the increasing demand for glasses by people who love beauty, myopia glasses have begun to combine the beautiful nature of sunglasses, and many new products have come out. The addition of contact lenses can be regarded as a supplement in terms of myopia glasses. The popularity of contact lenses has a sufficient reason that it eliminates the trouble of frame glasses, does not affect the appearance, and the feeling of seeing objects is more three-dimensional.

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