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Glasses are not just a tool for correcting vision or shading
In the past 80 years, it has become a fashion item with beautiful appearance
Great changes have taken place in the trend of glasses
It follows the changes of times and environment
With the combination of material and art
In a tangible way
Do you want to know the glasses that have been popular in Europe and America in recent decades
1930s
The primary demand for women's glasses is thin
The most fashionable are rimless hexagonal transparent lens glasses and round sunglasses
1940s
Classic cat eye look
With amazing colors
Popular since the 1940s
1950s
After World War II
Aviator glasses are all the rage
meanwhile
More industrial design elements are integrated into the eyeglasses
1960s
Jacqueline, the wife of former President Kennedy
Rewriting the history of women's glasses trend
Turn people's eyes to the full armed, round frame sunglasses
This classic frame has swept the whole fashion world like a storm
1970s
In the 1970s, we pursued fashion, fashion and the most fashionable
Big frame shape continuing from 1960s
go beyond
Everyone loves oversized glasses to show their personality and trend
1980s
A decade passed
Glasses begin to match with brighter colors
And decorate with colorful decorations
1990s
By the '90s
"Small round and thin" frame is becoming popular
After 2000
10 years after the Millennium
With the influence of Paris Hilton, the "intruder"
Bling Bling's glasses are becoming ubiquitous
Today
Today's glasses add a little Retro
Merge into a new style
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For a man with glasses
The biggest wish is
To be able to match one for yourself
And to the greatest extent
Glasses for eye protection
so,
It's on the market
All kinds of glasses with different functions
In recent years
The most popular is
Various blue light proof lenses
To protect against the "ubiquitous blue light hazard"
There are even posts on the Internet claiming that
Blue light can cause
Visual fatigue
Retinal injury
Maculopathy
Even blind
So is that the case?
Is blue light so harmful?
Can you avoid wearing blue light proof glasses?
today
Just say it for everyone
Is blue light really harmful to the eyes?
We call the light that the human eye can see visible light, and its wavelength range is 380nm-780nm. According to most national standards, the visible light with a wavelength range of 400nm-500nm is called blue light.
In visible light, blue light is the most sensitive and penetrating to retina. Theoretically, blue light may cause damage to some eye tissues. However, the following facts should be noted:
1、 The eye itself can block some blue light, and the retina also contains antioxidants that help filter blue light.
2、 Although people associate blue light with computers and mobile phones, the biggest source of blue light is sunlight. Other sources include fluorescent lights and LED lights. The blue light exposure on the screen is much less than the sun exposure.
3、 Dr. Khurana, a spokesman for the American eye Association, an authoritative organization, said that blue light can be exposed to computers, televisions, mobile phones and tablets, but there is no scientific evidence that the blue light emitted by digital devices can cause harm to the eyes.
Say in this way, since blue light is not harmful to the eyes, why do you have eye discomfort when you look at the screen for a long time? And look down~
Why does long time see a screen can eye discomfort?
Normally, humans blink about 15 times a minute. Research shows that when we use digital screen equipment, the number of blinks will be reduced by 1 / 2 ~ 2 / 3, and the reduction of blinks and close work will lead to eye fatigue.
Is it necessary to wear blue light proof glasses?
Anti blue light glasses are becoming more and more popular. Advertisements for these glasses claim that excessive exposure to blue light will cause a series of eye problems, such as dry eyes, visual fatigue, and even loss of vision.
However, there is no evidence that different wavelengths of light from the screen can damage the eyes. Dr Khurana recommends not using glasses that claim to protect the eyes from blue light, as there is also a lack of evidence that they are effective.
Is blue light only harmful to the body?
Blue light has been shown to affect the body's circadian rhythms. Too much blue light coming into contact with electronic products such as mobile phones at night can damage people's ability to fall asleep.
Therefore, it is recommended that you limit screen time two to three hours before going to bed, and adjust the electronic equipment to night mode, so as to reduce glare, alleviate visual fatigue and minimize the blue light at night.
However, with the further understanding of blue light, it has been found that blue light plays an important role in maintaining human health, such as regulating hormone secretion. At the same time, blue light can also avoid reducing night vision, which is also beneficial to the refractive development of adolescents and minors.
How to protect your eyes?
Nowadays, screen terminals are everywhere. In order to protect our eyes, we recommend the following methods based on the recommendation of American eye Association:
01,Keep a reasonable distance from the computer screen, about 0.6 meters (about the length of one arm), and the angle of view should not be less than 15 degrees, or stand up and adjust at intervals.
02
Screen filters can be used to reduce glare.
03
Use the "20-20-20" rule to have regular rest: reduce the use of computers or mobile phones, pay attention to the intermediate rest, get up every 20 minutes or so, or overlook the scenery outside the window.
04
Reduce the use of air conditioning, pay attention to air humidification, reduce the symptoms of dry eyes.
05
Adjust indoor lighting and screen contrast to reduce eye fatigue.
06
People who wear contact lenses can wear frame glasses to rest their eyes.
07
Pay attention to eyelid hygiene. Wash your hands frequently and don't rub your eyes.
08
Blink more. It is recommended to blink 4-6 times per minute, with complete tear film, which can reduce dry, pain and blurred vision.
If there is any other discomfort in the eyes, it is recommended to go to the eye department. The society also recommends that everyone should have an eye system check before the age of 40, and a comprehensive eye check from an ophthalmologist on a regular basis is essential for the early diagnosis of any potential eye disease.
How should children use electronic equipment?
The electronic products of mobile phones are becoming more and more child friendly. What are the restrictions on the use of screens for children?
Studies have suggested that daily screen use is related to child development, obesity, poor sleep quality and eye development. In Asia, up to 90% of adolescents and adults are nearsighted.
The World Health Organization recently released new guidelines that recommend zero screen time for children up to the age of one, and as little screen time as possible for children in the following years. The American Academy of Pediatrics recommends that digital media (except video chat) not be used in children between 18 and 24 months of age.
in summary
There is no scientific evidence
Blue light from digital devices
Can cause damage to eyes
therefore
I suggest you
Eye protection
We should start with the little things in our daily life.
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The sun's ultraviolet rays can damage the eyes and skin, and sunglasses are vital protection. To some extent, they are a health product that helps prevent cataracts and macular degeneration, but also a fashion accessory.
However, the price of sunglasses in European and American countries is generally hundreds or even thousands of dollars. Why is the price so expensive?
Sunglasses are made of glass or plastic, specifically acrylic, polycarbonate, CR-39 or polyurethane. The frame is made of plastic, nylon or metal. These materials will become lighter, more flexible and more scratch resistant, but none of them involve revolutionary processing methods or materials, or require billions of dollars in research and development costs.
The cost of making sunglasses is much cheaper than what the price tag says. Sunglasses, which cost hundreds of dollars, cost just over 120 yuan, and are often made in China.
In fact, the sunglasses industry in Europe and America is actually a monopoly industry: it is mainly controlled by an Italian company named rosaortica. Haven't you heard the name? But you must have heard about their brand, because this company controls everything about luxury goods. They have the sunglasses of Armani, bobari, Chanel, Gucci, dujiabanna, Migao Kos, miumiao, Oakley, Oliver pipas, sun, Prada, Ralph Lauren, ray ban, Tiffany, Versace and other brands.
It's not over! Rosaortica has 9000 retail stores around the world. If you go to the mall, you must run into the company's brand sunglasses store. The giant also dominates the myopia Market: all "bright view", pearl vision, Sears optics, and target optics stores have rosaortica group branded frames.
In addition, rosaortica group also owns eye Med vision care, the second largest vision insurance company in the United States. In 2018, it was merged with France's Evian, one of the world's largest manufacturers of glasses and contact lenses. This behemoth is now called "isillosa otica.". If you have sunglasses, or nearsighted glasses, you probably already own the company.
Leonardo de vicher, founder of rosaortica group, is a godfather. People in the industry try to avoid mentioning his name. "To be honest, he was guided by fear," said a former rosaortica executive Even his daughter admitted in a biography that she was afraid of him.
Rosa ortica's price hike on sunglasses is crazy, reaching 1000% or more. In 2019, the founder of bright view told the media: "you can buy amazing good frames for $4 to $8, the quality is up to the level of WarBy Park, and the designer level frames can be bought for $15, just like Prada glasses. The price of really expensive glasses is ridiculous. It's a complete fraud. "
Of course, the designer's work is original design, which may be composed of luxury materials, or even elaborately made. But everyone knows that what customers really pay is the designer's name and logo. So do sunglasses.
From the perspective of sunglasses pricing, just like watches, the demand for sunglasses of luxury brands will increase with the price rise. Why is that? Because people want and expect to pay a lot of money for this kind of goods! And rosaortica is probably happy to cater to this demand.
As we all know, sunglasses are a fashion. A good tool for every real Hollywood actor to show his charm is an excellent pair of sunglasses. Between fashion and health, what can you do without sunglasses?
Oddly enough, antitrust agencies in Europe and the United States seem to turn a blind eye to sunglasses giants. European and U.S. Federal Trade Commission gave a green light to the merger of ISIL and rosaortica. "This has never happened in the seven centuries of eyewear industry," the guardian exclaimed at the time
In fact, there are some cheap sunglasses brands in the European and American markets. Brands like goodr and knockaround cost a fraction of the price of luxury sunglasses. In addition, WarBy park has also achieved success in many product lines with moderate prices in the past decade. However, it is extremely difficult to play with monopolists, and it is not easy to compete in price and value when so many people in Europe and the United States regard sunglasses as a kind of luxury.
As long as a company monopolizes the sunglasses industry in Europe and America, it can set its own price. "It's all worth the money that people are prepared for," rosaortica's chief executive said on the 2012 show 60 minutes
He was right, but in the worst way. Consumers in Europe and the United States can buy Sunglasses anywhere, but if you want to buy Sunglasses that people think are good, you have to pay the price Rosa ortica told you.
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Abstract: "American things are so cheap!" It seems that people who say this must not buy glasses in the United States. You know after buy glasses here, things in America are not so cheap.
First of all, glasses in the United States must be optometry, or you have an optometry sheet, effective within 2 years. Generally, optometry is free in China's optical shops, but in the United States, optometry and matching are separated. There are optometrists in ophthalmic clinics and large optical industry, and the cost is generally about 40-60 dollars.
After optometry, we have to choose the frame and lens ourselves.The price depends on different glasses stores and brands. Of course, insurance is also very important. Some optician's insurance can cover part of it, which is more cost-effective. However, each optician's insurance is different, so it's still necessary to find out. Because there is no insurance, the price difference will be large.
If you want to choose the cheapest glasses, Costco is basically the first choice.
There are optometrists in every Costco, but this doctor is not a Costco employee. He just signed an agreement with Costco to open the outpatient service in Costco. Optometry technology also varies from store to store. You can also have optometry in other places, just take the doctor's prescription. Costco's glasses are basically brand names, such as Fendi, Armani, Burberry, and coach and guess. The price is basically between 50-150, most of which are about 90. Compared with other glasses stores, it's quite cheap. Costco receives VSP insurance. It can cover part of it, and often has discount. And it's said that a new one can be replaced free of charge if it's damaged within one year (the after-sales service is really good!). Costco can also be fitted with contact lenses. In addition, Walmart and target will also have cheaper glasses.
In addition to Costco, the glasses in many Chinese opticians are not too expensive.
We recommend fuliming glasses Co., Ltd.
Guangming glasses store
In addition, you can also buy glasses on the Internet, and there is muukal, a website that specializes in selling glasses. Of course, you also need an optometry sheet to buy glasses on the Internet.
If you don't have insurance, or you think the glasses here are too expensive, it's recommended to go back to China and find some better ones. The cost performance ratio may not be lower than that here.
Glasses related English
Hard resin lens
Tinted lens
Photochromic lens
Spherical
Contact lens
prescription
Visual inspection report (optometry sheet)
Tints (color)
Ultraviolet coating
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