Why Do I See Halos Around Lights At Night?
Sat, Apr 02, 22 By : Koalaeye
What Do the Numbers on Glasses Mean? The first number on glasses frames is the eye size. It is the horizontal width of the lenses. In general, the number of eye sizes varies from 40 mm to 62 mm in most of the spectacle frames. The second number is the bridge size. It is the distance between the lenses. Also, it is the bridge that rests upon your nose. Mostly, the size of the bridge on glasses frames would be...

What Do the Numbers on Glasses Mean?

The first number on glasses frames is the eye size. It is the horizontal width of the lenses. In general, the number of eye sizes varies from 40 mm to 62 mm in most of the spectacle frames.

The second number is the bridge size. It is the distance between the lenses. Also, it is the bridge that rests upon your nose. Mostly, the size of the bridge on glasses frames would be from 14 mm to 24 mm.

The third number is the temple length. It is the length of the stems of the frame that rests upon your ears. It can be measured from hinge to the end tip of the temple. In general, the temple length in most cases is from 120 mm to 150 mm. The bridge and temple help the frame to comfortably fit on the face.

Meanwhile, if there are no numbers on glasses frames, do not worry. You can always measure your eyeglasses frame with a millimeter ruler. Sometimes, the tiny numbers are worn off or sometimes they are printed too small that you might have to use the magnifying glasses. If you have known the glasses numbers meaning, you can choose to measure them by yourself.

At the same time, to fit the glasses better, you can also choose to measure your face for glasses frames. After knowing the suitable size of glasses, you can choose to buy a pair of glasses online. Thus, Koalaeye Optical is recommended. It is an online glasses store and provides all kinds of glasses, sunglasses, and frames. What’s more, these glasses are stylish and cheap.


Safety effects of non-prescription glasses

Safety glasses are available in a variety of styles for different users. There were glasses to protect his eyes from shocks or damage, like those used by people who lost an eye in the past. Many of them often wear protective goggles to protect their eyes from injury and to maintain a degree of vision. Safety goggles made of shatter-proof materials have become a staple in many industrial places, from factories to construction sites. Because in such an environment, the likelihood of being hit by debris or mud is very high.



Do prism glasses have side effects?

Prism glasses do not have side effects. Prescription prism glasses are designed to help your vision. Prism glasses are not apparently different from general glasses in terms of thickness. It may take a few days to get used to wearing new prism glasses or newer prescription glasses. There may be some eye strain during this time.


Each type of store has its own characteristics.

Nowadays, the optical stores in the market can be roughly divided into professional optometry and optical matching stores, fast fashion stores, brand flagship stores, and stores in shopping malls. The benefits of fast fashion optical stores are fast commodity update frequency, and they follow the fashion trend, which can bring consumers quite more choices. The size of fast fashion optical stores is usually not large, so they will use an open showcase design. The color collocation should be able to catch the attention of consumers, to attract customers to make self-service selection and experience.



Driver's protective glasses

The principle of the driver's protective glasses is to use the special film on the glasses to reflect the strong light hitting the glasses back to protect the eyes. It can protect against ultraviolet, infrared and blue light on foggy and rainy days. In snowy weather and at night, the wearer can see the scenery more clearly, and it can also increase the vividness of red, yellow, green, white, and other colors, and eliminate the glare and reflected light of the oncoming cars when meeting cars at night.


Sunglasses For Different Face Shapes

The round face is what we usually call the babyface. The facial lines are relatively round. What kind of sunglasses is suitable for people with this face shape? First of all, you cannot choose a large lens. It does not mean that a large lens can cover a big face. You should choose a dark square lens. A round face and a round frame are both enemies. And putting them together will make a person's face look rounder, so try to avoid round frames.

For the square face, the cheekbones and the angle of the mandible are relatively square, and the chin is shorter and well-defined. This kind of face shape must first avoid square frame sunglasses because it will make the face wider. You can choose dark square round sunglasses and cat-eye sunglasses, you can also choose a long and narrow line of aviator sunglasses, the width of the frame is slightly larger than the width of the face.

The long-faced people should choose big sunglasses that can cover the face, and shorten the face. Also choose a darker color, which has a good occlusion effect. The Aviator sunglasses are the most friendly style for people with long faces.

The oval face is also the most popular oval face, the traditional beauty face. The young lady with this face shape can choose sunglasses at will. There are no defects to cover, so you can choose boldly and safely. But don't choose which ones are particularly exaggerated, which are too eye-catching.

The best way to choose sunglasses is to go to the optician to try them on. According to your own preferences, try a variety of styles so that it is easier to see which one is more suitable for you. There are a lot of sunglasses for us to choose from. In order to enhance our beauty, we must choose the most beautiful sunglasses that suits us.



Optometry glasses are not professional

Some people will not only experience dizziness when they change their glasses but also have headaches, nausea, vomiting, inattention, neurasthenia, and other symptoms from time to time. And some people even deepen myopia. This is most likely due to unqualified glasses and inaccurate optometry. In short, this eye discomfort is caused by the inconsistency between the power of the glasses and the actual condition of the eyes. Optometry before filling a prescription is a very important step. In addition to checking myopia and astigmatism, it is also necessary to check for eye disease, binocular vision balance, monocular ability, primary vision discrimination, interpupillary distance, etc. In this way, suitable glasses can be fitted according to the overall situation of the person's eyes. The spectacles must also match the parameters of vertex, interpupillary distance, cylindrical lens axis position, etc. Otherwise, it will directly affect the effect of correcting vision, cause the user's visual fatigue, and increase the emphasis on power loss.

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