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.
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.
Wearing glasses equipped with Rogers progressive multi-focus reading glasses can not only avoid the trouble of frequent picking and wearing but become the mainstream of the international reading glasses market with elegant and decent youth. ROGERS' progressive multi-focus glasses have become the bright pearl in the eyes of politicians and business tycoons in developed countries, and thus gradually become popular and popular among the general public. ROGERS's progressive multi-focus reading glasses have won the favor of the reading glasses market and the industry with their excellent cost performance and have become the preferred lens for processing multi-functional reading glasses and progressive multi-focus reading glasses in the industry.
Which Reading Glasses Are Most Suitable for Me?
If you have never previously required prescription glasses to improve your vision such as nearsightedness or farsightedness or astigmatism, it is highly like that you can correct your vision with non-prescription reading glasses.
People around the age of 40 to will benefit from the low power reading glasses because of the progressive nature of presbyopia. In other words, you do not need prescription glasses to correct your vision.
However, if you are around the age of 60 or older, the strength of the reading glasses will increase. However, you do not need prescription glasses.
What Do the Numbers on Glasses Mean?
In this section, we will show you the glasses numbers meaning. These numbers on glasses frames are the measurements that indicate and describe the size of your eyeglasses frames, specifically:
- The eye size number (it is the size of the lenses on your frame).
- The bridge size number (the distance between the lenses).
- The temple length number (it is the size of that part of your eyeglasses frame, which rests upon your ears).
The three numbers mentioned above are the key measurements that describe the glasses measurements of the frames in eyeglasses. For example, you will see three numbers like 51-17-145 at the temple of your glasses. These numbers help the optician to choose the best-fitted frame for your head size and facial features.
All of these three numbers are measured in millimeters. These variations in frame numbers are fitted by a skilled optician so that it should be best fitted, be comfortable and look good on the appearance.
A service is also a form of discount.
The eyewear industry itself is a service industry, and good service can increase sales. If they sell inferior glasses and gifts, they are destroying the brand. Optometry itself belongs to the service, when people are choosing glasses, they must include this kind of service. Consumers are willing to come to optical stores in order to get better service. Therefore, reception, recommendation, testing, and other services should be done. Such as door-to-door delivery, door-to-door product experience, introduction and recommendation, free maintenance and repair, add good value-added services, which is more likely to make consumers buy. This is also a form of promotional activity.
What Are Progressive Lenses?
Your eyes change with your age. When your reach your 40s, you may find that it is difficult for you to focus between a book, a website on a computer screen and the conference room whiteboard. Progressive lenses are growing in popularity among people who need help seeing near, far and in-between.
Progressive lenses have grown in popularity and are one of the most common solutions to treat vision loss that occurs with age or presbyopia. Progressive lenses have a seamless increase in magnification from the top to the bottom of the lens, helping you see clearly at all distances with just one pair of glasses. The top portion of the lens enables you to see the far-away objects, the middle portion of the lens enables you to focus on the intermediate objects and the bottom to see objects close-up. The prescription changes little by little across the lens surface providing a gentle transition.
After knowing what the progressive lenses are, do you know what are the pros and cons of progressive lenses? If not, keep on your reading and we will show you some information.
The founders of FASHION OPTICAL thought glasses are an art. Space design, color, tone, and designer of the glasses are all visual fusion from concept to creation. They provide the best customer service and got a wonderful reputation. From the conservative exotic to all over the world, they have the coolest glasses. Anyone can reach it. In 2012, Morgan launched them.GIANNI sunglasses line drafted and designed by Morgan. They use only the best acetate, which is made personally and produced by the famous Marzuchelli factory in Italy. Many Hollywood celebrities have used this collection.