How Can I Test My Blue Light Glasses At Home? | KOALAEYE OPTICAL

How Can I Test My Blue Light Glasses At Home?

How to Choose Glasses for Square Face?

Cat-eye glasses: cat-eye glasses are currently a very popular fashion trend. The upswept browlines provide curves and movement that are suited for any face shape. So, if you have a square face, you can try cat-eye glasses.

Oval glasses: oval glasses can soften your strong angles and balance your face and minimize your strong features. So, if you have a square face, you can try the oval glasses.

How to choose the best glasses for square faces? After reading this post, you may have some ideas. If you want to choose sunglasses for square faces, you can also follow the above suggestions. If you want to choose a new pair of glasses or sunglasses, Koalaeye glasses are recommended, which are stylish and at a cheap price.


What is a drop ball test?

The Drop Ball Test, known as the Basic Impact Test, is an Impact Test administered by the Food and Drug Administration to determine the safety of eyeglasses. Eyeglasses (sunglasses, exercise glasses, near-sightedness glasses, reading glasses, etc.) are a category of medical devices covered by the Food and Drug Administration. When glasses are exported to the United States or put on shelves on Amazon,eBay, and other platforms, they need to be registered by FDA. Besides the product listing, when the product passes the customs, the company may be asked to produce a Certification Statement of Impact Resistance stating that the product meets 21CFR801.410 Drop Ball Test requirements.



Are blue lenses good for driving?

Do not buy blue sunglasses, which cannot filter ultraviolet rays. In the choice of sunglasses, try to choose brown or gray. When driving a car, choose to wear sunglasses, and safety should come first. Wearing and viewing comfort is the most important indicator. It is worth reminding that wearing dark-colored sunglasses will create a very dark environment for the eyes, which will easily lead to pupil dilation, and long-term wearing will cause certain damage to the eyes.


What Are Standard Progressive Lenses?

Standard progressive lenses are a type of progressive lens with plenty of room at the bottom for your near vision. If you need to see something far away and up close, such as a book or magazine, this lens is for you. Transitioning between these viewing areas is often painless for your eyes.



What are the advantages and disadvantages of bifocal reading glasses?

The advantage of bifocal reading glasses is a large field of vision, and they can be used with the same pair of glasses to see far, near. The cost is lower. But different areas have obvious intervals, and the appearance is not beautiful. The middle distance is fuzzy. They need to adapt to the period. Bifocal reading glasses lens is divided into two parts, and the degree of the two parts is not the same. The upper part is the mother of the flat area to see far, and the next part is the child of the reading area to see near. There is an obvious interval. The appearance is not beautiful. There is no transition area between two different areas, so its vision is fuzzy, easy to produce a 'jump image'. Long-term wearing will make people dizzy or fall down when climbing stairs.


Why do you need rimless glasses?

Traditional full-frame glasses can sometimes make your face look heavy, especially if the lenses are thicker. Rimless glasses can replace heavy frames without weight from the rims. This reduces the pressure on the nose pad, making your face feel lighter and more comfortable.


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The Advantages of Trifocal Lenses

The greatest advantage of trifocal lenses is that they have three prescriptions in one, which means that not only do you not have to buy three separate pairs of glasses, but you also won’t have to constantly change them as you go about your day.

Another advantage of trifocal lenses is that in some cases, they offer a broader viewing area for near and intermediate-distance applications like reading and using the computer.

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