Do red lenses block blue light?
Thu, Apr 07, 22 By : Koalaeye
Silhouette The Silhouette is a luxury eyewear company founded in 1964 in Austria. The target is to provide glasses with unmatched performance and inner strength. It is a leader in glasses innovation, providing a simple and stylish range of selections for both men and women. With each pair of glasses, they try to give everyone a pair of glasses that allow them to be who they really are. How to Test Blue Light Glasses (Amber and Red Lenses) This section...

Silhouette

The Silhouette is a luxury eyewear company founded in 1964 in Austria. The target is to provide glasses with unmatched performance and inner strength. It is a leader in glasses innovation, providing a simple and stylish range of selections for both men and women. With each pair of glasses, they try to give everyone a pair of glasses that allow them to be who they really are.


How to Test Blue Light Glasses (Amber and Red Lenses)

This section will show you how to test blue light glasses with amber or red lenses.

1. The Black and Blue Squares Test

1. Prepare black and blue paper.
2. Wear your blue light glasses after sunset and check whether both paper appear black.
3. If they do not appear black, your blue light glasses can’t block all blue light.

2. RGB Color Chart Test

1. Prepare an RGB color chart as follows.
2. Wear your blue light block glasses and look at the chart.
3. After wearing blue light blocking glasses, if the B section becomes black and the G section becomes darken, it shows that your blue light glasses block blue light and some filter some green light.
4. The less bright the green circle with your blue light glasses, the better they are.

RGB

Besides the above ways, you can ask the professional optician to perform a professional blue light glasses test, which would be more reliable. After that, you can know whether your glasses work effectively to block blue light.

What’s more, if you want to purchase a pair of effective blue light blocking glasses, you can try Koalaeye Optical. It is cheap and provides free shipping services.



Choose the right frame for your face.

People who have bought glasses in a physical store usually know what kind of frame fits them. Do not blindly choose vintage-style glasses according to your preference. Measure the distance between the temples of your old glasses so that the new ones are comfortable to wear. The General online glasses style is very rich. Because there is no shop rent and middlemen, the price is much cheaper than the traditional glasses shop.


Are children optometry matched with glasses the same as adults?

The optometry of children is one of the main works of optometry. Compared with adult optometry and glasses, children's optometry and glasses have both commonness and particularity. It is an area at the intersection of pediatric ophthalmology, pediatric optometry, and optometry. It requires the operator not only to have the knowledge of ophthalmology but to have the basis of children's ophthalmology and children's optometry. And they should be an optometry expert. Dealing with children's refractive problems is as much an art as a technique.



How to buy anti-blue light products?

In order to further standardize anti-blue light products and make all kinds of products effectively protect eye health, relevant standards have been formulated. Based on the different effects of blue light in different bands on the human body, the transmittance of blue light in each band is required in the standards.

For example, in the band range of 415-445 nm, the transmission ratio of light is less than or equal to 80%, and more than 445 nm, it is greater than 80%.


Use your two hands to wear and take off the glasses.

When you pick and wear glasses, you need to grab the temples with both hands and take them off. When you pick and wear glasses with one hand, it is easy to cause deformation and loosening of the glasses. According to the convention of international glasses design and manufacture, you should fold the left temple first. When placing glasses, keep the convex side of the lens up to avoid scratches on the lenses.



What kind of frames can working women choose?

If you are a heart-shaped face, the selection of the frames is different. Of course, to look relatively stable and mature, you can choose some simple frames, like square frames. You can choose gold or black gold, black silver line. Or the kind of slightly Japanese style of small round one, looking more literary and young. The frame can choose pure titanium, relatively light and quality will be better. The choice of the frame should be carried out according to the different working environments. If you are a teacher or doctor, you should choose low-key, elegant frames. If you're a freelancer who needs to show off your personality, you can pick up trendy frames.

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