How can you tell the quality of polarized sunglasses? | KOALAEYE OPTICAL

How can you tell the quality of polarized sunglasses?

What Are Yellow Lenses For? Reading How can you tell the quality of polarized sunglasses? 5 minutes Next What Is The Strongest Over-The-Counter Reading Glasses?

Choose a good merchant.

The best option is to return the goods with a quality guarantee.High-quality pure titanium frame production cost is not less than 100 yuan, and online sales will be not less than 50%, so you have to be careful with prices less than 200 yuan. Because pure titanium frame material cost determines its price, the ultra-low price of pure titanium frame is definitely not real.


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.



What Are Blue Light Glasses?

Blue light blocking glasses have specially crafted lenses that are said to block or filter out the blue light given off from digital screens. The lenses are often marked with a coating that protects your eyes from eye strain and can help reduce potential damage to your retina from prolonged exposure to blue light.


Choose rectangular glasses based on the shape of your face.

If you belong to the oval face, do not choose the too large or angular glasses frame. And do not choose long or square ones. It will be easy to elongate the face and affect the overall appearance. The shape of a round face is the opposite of a square face, so the buying principle of the glasses is basically the opposite of a square face. You need a more angular one to improve the shape of the face, but you need a square face (elongate) principle, that is, use a lower height, higher temple position of the frame.



How many degrees of myopia do I need to wear glasses?

Students are the most nearsighted because they need to read and study every day. Many people have myopia during their student days. During the physical examination, everyone will check their eyesight first. Generally speaking, if the visual acuity is lower than 0.6, it means that you may be near-sighted to 0 degrees. At this time, you need to go for optometry to see the specific vision situation and see if you need to wear glasses. If the visual acuity tested exceeds 200 degrees, you must wear glasses at this time. If you do not wear glasses, your vision will be greatly affected, and the degree of myopia will rise quickly. For this reason, you must wear glasses in time to correct your vision. If the degree of myopia does not exceed 0 degrees, this is pseudo-myopia and does not require glasses. However, you should always take care to protect your eyes, avoid staring at things at close range for a long time, and don't let your eyes get too tired, so your vision will slowly return to normal.


What Are Rimless Glasses?

A right pair of glasses enhance your appearance as well as your vision. If you choose a pair of unsuitable glasses, they can weigh down your face and hide delicate your features. So, more and more would like to choose the right pair of glasses and many people like rimless glasses.

What are rimless glasses? From the name, you can know the meaning. It means that there are no frames on glasses. Rimless glasses can help ease eyewear apprehension by improving your vision without overhauling your look.

In addition, rimless glasses are light weight and comfortable. Because they accent your natural beauty, your features won’t get buried under a pair of rimless glasses.

Of course, there are some advantages and disadvantages of frameless glasses. So, in the following section, we will list.


Sale priceFrom
Sale priceFrom


Features of Diamond Face Shape

Before proceeding with the glasses for diamond face shape, you need to know how to figure out your face shape and the features of the diamond face shape. This section will list some features of diamond face shape.

One of the most common features of diamond face shape is the presence of angles and pointed features and the widest part of the face is the cheek. And the forehead and the chin appear to give height to the face.

The forehead of the diamond face shape is not broad or wide. The size of the forehead is smaller than the cheeks indicating the upper part of the curve of the diamond. The shape of the cheeks is angular and the angles of the face are the widest feature on the face with the cheekbones placed a little higher. The jawline of the diamond face shape is narrower and is smooth with no angles or pointed features. And the lower part of the face is quite pointed or lacks angular features.

Leave a comment

All comments are moderated before being published.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.