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.
Can blue glasses double up as sunglasses?
The main function of sunglasses is to keep out dazzling strong light, to reduce the eye adjustment that causes fatigue or the harm that strong light stimulation causes. Their light transmittance is very low, only suitable for use when the sun is strong outdoors. If wearing sunglasses indoors, or at dusk, or even in the evening, because the light is reduced, it will not play a role in protecting the eyes or even will increase the burden of the eyes. The Anti-blue lens is yellow-green and needs to meet the transmittance and blue obscurity. If you are walking outdoors for a short time, good blue light glasses can of course completely meet your outdoor eye protection needs, but due to the high light transmittance, it is not suitable for a long time outdoors, as the sunglasses. Because although it can block UV rays, they are not very good at the filtering of strong light. General anti-blue glasses can not be equal to sunglasses, the main function is not the same, and the use of the scene is not the same.
Where to buy clear eyeglasses?
When shopping for new clear eyeglasses, you can easily feel overwhelmed by the endless racks of styles and brands. The way to access value is to buy from a store that offers great advice, where you’ll be told whether more expensive frames warrant their higher prices or that you’d do just as well with a lesser-known brand. Koalaeye Optical offers “Wear in Comfort, Look in style” eyeglasses and sunglasses. If you buy glasses online from us, you will get a huge variety of frame styles and colors. And the prices are highly affordable so they won’t burn a hole in your pocket.
Does a long-face suit wear transparent glasses?
A long face gives people a sense of being relatively thin, so it is best not to wear a transparent, thin frame, or it will show a longer face. It is best to wear glasses with wider rims and darker colors. Compared with women and men, because the overall image of the difference is relatively large, in the selection of glasses, it is best to foil the characteristics of the face and highlight the overall contour of the face. At the same time, the man with a lighter skin color can choose a lighter color frame like the tortoiseshell gold silver frame. People with dark skin color can choose a heavier color frame, like red, black, and so on.
How to drive at night with glasses?
Far-light is easy to cause blind spots for drivers of opposite vehicles, and it is possible to cause traffic accidents when driving in the cities. In the process of driving, if the driver encounters the situation that a high beam disrupts the line of sight, can turn the eye in the left or right direction, avoid light sources, and allow your eyes to gradually adapt to the other person's light source. If you can't see clearly, slow down or even pull over.
Driving Glasses - KoalaEye
The koala eye driving glasses are stylish, and the material is flexible and elastic. The lens arc fits the face line, which has a very good sense of comfort and balance. Imaging sense is very good, and the color is real and clear. It can effectively relieve eyeglasses eyestrain. Also in the market with excellent quality and simple fashion design, it is loved by the public.
Can you get prescription glasses for night driving?
It is recommended to choose prescription night driving glasses with an anti-reflective coating.When you're driving at night, you'll encounter several bright light sources, including the car's headlights, taillights, and street lights. These light sources can be a distraction for any driver, but especially for those with eye problems. The light reflected from these light sources can cause these drivers to temporarily lose sight of the road, which can lead to many unfortunate situations. As a result, the anti-reflective coating protects your eyes from nighttime brightness and daytime UV damage. The coating on the glass prevents the reflection of these light sources, allowing you to better focus on what's happening in front of your car. Meanwhile, prescription glasses with an anti-reflective coating can reduce glare and improve vision. Whatever prescription glasses you choose for night driving, make sure they have an anti-reflective coating.
