Author: aokereyewear

Today we will take an in-depth look at myopia lens materials. To figure out which myopia lens works best, you first need to learn about different lens types.

Experts classify myopia lenses by material into inorganic materials and organic materials. In terms of development history, they fall into three categories: natural crystal lenses, optical glass lenses and optical resin lenses. Ophthalmologists point out that the best myopia lenses are those that correct vision while providing optimal eye protection.

1. Lens Performance: Blue Light Blocking & Anti-Fatigue
When choosing myopia lenses, evaluate them from three aspects: imaging quality, anti-eye fatigue performance and ultraviolet (UV) protection.
Studies show crystal lenses fail to block UV rays effectively. They contain numerous natural mineral impurities and deliver poor optical imaging, so they have been largely phased out.Glass lenses only block UV light up to 350 nm, while the wavelength range of harmful UV rays is 295–380 nm.Resin lenses can block UV rays within 350–380 nm, and some premium variants offer protection beyond 380 nm.
In addition, various lens coatings are available. Coated lenses feature higher surface hardness and help relieve eye fatigue.

2. Resin Lenses vs. Glass Lenses: Different Functional Features
Glass lenses and optical resin lenses are the two most common options on the market.Glass lenses are hard and highly wear-resistant, with stable quality and parameters over long-term use.
Resin lenses are divided into spherical lenses and aspherical lenses. Compared with spherical lenses, aspherical lenses produce less peripheral aberration, present more realistic vision and look more aesthetically pleasing. Generally, a higher refractive index means thinner and harder lenses.
Resin lenses are much lighter than glass lenses, provide better UV protection and superior impact resistance. For these reasons, optical resin lenses are the better choice, ideal for teenagers, people with high refractive errors and athletes.

3. Price Is Not the Priority — Suitability Matters Most
Ophthalmologists note that the quality of a pair of glasses mainly depends on the lens. Lens prices are determined by brand, imaging performance and coating technology, while frame costs largely decide the overall price of the glasses.

Therefore, the quality of myopia glasses is not necessarily proportional to their price. People with myopia should neither buy cheap glasses at random nor blindly pursue expensive products that do not fit their eyes. It is recommended to get an eye examination at a professional ophthalmic hospital, and pick suitable, cost-effective glasses based on individual eye conditions.

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The trend of myopia affecting younger children and developing into severe cases is worsening, and the growing number of children wearing glasses has drawn widespread public attention.
Can these vision rehabilitation centers really help kids ditch their glasses? Reporters recently conducted an on-the-spot investigation into the issue.

Using keywords such as “myopia treatment” and “vision rehabilitation” on Baidu and Dianping, reporters found that there are more than 300 such stores in Beijing alone, including numerous franchise chains. Some youth vision rehabilitation centers have over a dozen branch locations.
The boom in the vision rehabilitation industry is closely linked to China’s persistently high and continuously rising youth myopia rate, as well as widespread anxiety among parents.

According to the latest report from the World Health Organization, China has a total of 600 million people with myopia. The myopia rate among high school and university students exceeds 70%, while nearly 40% of primary school students are nearsighted. China ranks first worldwide in youth myopia prevalence, and the figure keeps climbing year after year. A recent survey of 1,950 parents of primary and secondary school students shows that 73% have children with myopia, and 92% are deeply worried about their kids’ eyesight.

“Half of the students in my class wear glasses, and several suffer from high myopia,” a teacher at a middle school in Beijing told reporters. Today’s children are surrounded by electronic devices, yet they fail to realize how much harm prolonged screen time does to their eyes.

Mr. Xu, a Beijing resident, has a fifth-grade son with nearly 200 degrees of myopia, who now struggles to see the blackboard clearly. Hoping to stop his child from wearing glasses permanently, he took the boy to a nearby vision rehabilitation center. “The staff said they could restore eyesight gradually through device-based and manual massage. Five treatment courses cost 7,000 yuan,” Mr. Xu said. He insisted that his child must not wear glasses at such a young age. “I’m willing to spend any amount on treatment, otherwise he’ll never be able to take glasses off later.”

The person in charge of the center stated that over 100 children have regained their eyesight since its opening. Business peaks during winter and summer vacations, and the center earned hundreds of thousands of yuan in profit last year.

Eager to free their children from glasses, many parents spare no expense on so-called myopia rehabilitation treatments once their kids are diagnosed with nearsightedness. Strong market demand has consequently given rise to a large number of myopia rehabilitation institutions of all kinds.

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Which brand of progressive lenses is the best?

This is a subjective question. Optometrists and opticians have their own preferences based on professional experience and patients’ feedback. Below is an objective evaluation of progressive lenses.
Advantages
One prominent benefit of progressive lenses is their integrated prescription design. There are no visible dividing lines on the lenses, nor will you experience image jump. This greatly boosts wearing comfort and enhances safety during activities such as driving. Conventional multiple pairs of glasses and frames mean extra maintenance work and higher costs, which is rather inconvenient. With progressive lenses, you do not need to switch glasses frequently when alternating between computer use, driving and other daily activities.
Even if you rarely use a computer, prolonged exposure to LCD or LED screens can strain your eyes, which makes intermediate vision correction essential. A single progressive lens can correct distance vision, intermediate vision and near vision (for reading) simultaneously — it serves three purposes at once.
Progressive lenses combine multiple visual fields into one lens, with diopter power changing gradually to accommodate far, intermediate and close-range viewing needs.
Disadvantages
Many new wearers encounter minor issues when walking up and down stairs. Since the near-vision correction zone sits at the lower part of the lens, stairs may appear distorted or “bouncing”. This is a normal adaptation issue, and the discomfort usually fades within about two weeks as you get used to the lenses.
Other potential problems often stem from lens materials, surface coatings, improper fitting or incorrect wearing posture, rather than flaws inherent to progressive lenses themselves. Some people simply struggle to adapt to progressive lenses. These lenses are not suitable for everyone, and a small number of wearers can never get accustomed to them. For such cases, bifocal lenses are a better alternative.
Limitations
The visual experience of wearing progressive lenses is often compared to watching movies on a modern high-definition flat-screen TV, instead of an old cathode-ray tube television.
Which brand of progressive lenses is the best?
This remains a subjective choice. Optometrists and opticians select different brands according to their professional experience and patients’ individual conditions.

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In daily work, many patients and parents often ask: “Which lens is better? Will certain lens coatings harm the eyes? Do you have blue light blocking lenses?” Today, let’s take a brief look at common coatings for resin lenses.

Early lenses had no coatings. After long-term use, people found that uncoated lenses were prone to scratches and produced glare, which blurred vision. As a result, hard coatings and anti-reflective coatings were developed.

Main Functions of Different Coatings
Hard CoatingResin lenses are lightweight, safe and comfortable, yet they scratch easily with regular use. A wear-resistant hard coating is applied to the surface to enhance the lens hardness.

Anti-Reflective CoatingThis coating leverages the wave properties and interference of light. It effectively cuts down glare, delivering clearer vision.

Top Coating (Anti-Fouling Coating)Lenses with anti-reflective coatings tend to get dirty easily, which lowers light transmittance. An additional top coating is added to repel oil and dirt.

Blue Light Blocking LensThere are two main types of blue light blocking lenses on the market: coating reflection type and substrate absorption type.

Reflection type: The lens is coated with a film that reflects short-wave blue light, giving the lens surface a blue-violet tint.
Absorption type: Special color infiltration technology tints the lens yellow to absorb blue light. Such lenses appear yellowish-brown with a dark coating.
How to Choose the Right Lens Coating
Lens coatings are manufactured through sophisticated processes to provide multi-layer protection. They affect the lens service life, appearance and visual clarity. Generally speaking, coated lenses outperform uncoated ones, and functional coatings work better than regular ones.
Choose coatings according to your personal needs, as the most suitable option is always the best:
People who frequently use electronic devices are recommended to choose blue light blocking coatings.

Primary and secondary school students may opt for peripheral defocus lenses.
Adults should prioritize protection against ultraviolet rays and blue light; photochromic and blue light blocking lenses are great choices.

Hard coatings are ideal for those who value durability and scratch resistance.

Anti-fouling coatings suit people who require lenses to stay clean easily.
Green coating is the most common and standard anti-reflective coating. It offers UV protection and excellent light transmittance, presenting clear, natural and true colors. It is comfortable to wear and perfect for people with high color perception requirements and students.

Do not select lenses merely based on their appearance. Always pick what works best for you.

As a professional eyewear supplier, we specialize in acetate eyewear, metal eyewear, and buffalo horn eyewear—offering style, function, and premium craftsmanship.

Many readers may not be particularly familiar with the types of progressive multifocal lenses, so this article introduces four progressive lens styles for your reference: bifocal reading glasses, reading line-free bifocal lenses, photochromatic/transition progressive lenses, and high-definition progressive lenses.

Bifocal Reading Glasses
Some hyperopic (farsighted) patients prefer to have “plano” or no prescription at the top of the lens and a reading prescription at the bottom, so they can wear their glasses all day without having to constantly put them on and take them off.
Reading Line-Free Bifocal Lenses
They are also known as bifocal reading glasses. Even if someone wears non-prescription readers, PALs can have no Rx at the top and reading power at the bottom without a doctor’s prescription.
Photochromatic / Transition Progressive Lenses
One of the coolest lens options is the gradient progressive lens, also known as photochromatic lenses. These lenses darken when exposed to ultraviolet light and are available for almost all lens types and most prescriptions. This is a popular choice because they protect your eyes from harmful UV rays.

High-Definition Progressive Lenses
High-definition progressive lenses are actually a marketing strategy for digital lenses. Free-form progressive lenses can produce more personalized and precisely finished lenses. Back-surface progressive lenses are free-form progressive lenses with the prescription placed on the back surface of the lens. The advantage of this is that the power distribution is closer to the eye.
We strongly recommend that you customize your progressive lenses because they are tailored to your specific needs—down to the frame, prescription, and even your lifestyle. They may cost a few hundred dollars, but specific measures are taken to improve peripheral vision. Determining the best type of progressive lens comes down to the specific measurements around your eyes and your requirements for your new glasses.

Many readers may not be particularly familiar with the types of progressive multifocal lenses, so this article introduces four progressive lens styles for your reference.

As a professional eyewear supplier, we specialize in acetate eyewear, metal eyewear, and buffalo horn eyewear—offering style, function, and premium craftsmanship.

Progressive lenses can achieve clear vision—but do you really know what progressive lenses are? This article will focus on explaining their meaning, advantages, and disadvantages.
What Are Progressive Lenses (PALs)?
Progressive lenses are a type of optical eyeglass lens used to simultaneously correct vision for distance, intermediate (computer use), and near (reading use). They are also known as Progressive Addition Lenses (PALs) because the distance prescription is located at the top and gradually increases in power as you move downward through the lens.
You should think of progressive lenses as line-free bifocal lenses. The progressive design makes the transition between viewing zones much smoother, eliminating the visible lines that separate distinctly different prescriptions on the lens. This technology helps you see better in more situations.
The price of each progressive lens varies significantly. PALs tend to be more expensive than others because you are essentially combining three lenses into one. The cost depends on several factors, many of which are well covered in this guide. One of the most important factors is the type of progressive lens you choose. The lens material affects the lens cost—the material used for PALs will also determine the price. Standard plastic lenses are thicker, heavier, have lower scratch resistance, and are not as shatter-resistant as other lenses. They tend to be the cheapest because the quality is not as good.
Advantages and Disadvantages of Progressive Lenses:
Digital PALs are more expensive but more personalized and specific to your measurements, which is key to providing the best visual experience. Traditional surfaced and occupational lenses tend to be cheaper than digital lenses but more expensive than “basic” PALs that have narrower corridors toward the bottom.
Progressive lenses are an amazing invention that allows multiple fields of vision to be merged into a single lens without any visible demarcation on the lens itself. The power in the lens “progressively” changes from distance to intermediate to your full reading power. This is why progressive lenses are commonly referred to as “line-free” bifocals or trifocals.

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Due to increasing academic and work pressures, as well as prolonged exposure to electronic devices, more and more people are experiencing vision problems. Some people choose progressive multifocal lenses when getting glasses—so what exactly are these lenses?
Progressive multifocal lenses are lenses where the upper portion is for distance vision and the lower portion is for near vision, with different powers in each section. The transition from the fixed distance prescription at the top of the lens to the fixed near prescription at the bottom is not abrupt; rather, it gradually transitions through a progressive change in refractive power between the two. Compared to ordinary bifocal or trifocal lenses, they offer the following advantages.
Principles of Progressive Multifocal Lenses

Aesthetic Appearance: The lens looks like a single-vision lens, with no visible dividing line showing the power change. Not only is it aesthetically pleasing, but more importantly, it protects the wearer’s age privacy—you don’t have to worry about revealing your age secret just by wearing glasses.

Smooth Adaptation: Because the lens power changes gradually, there is no image jump. They are comfortable to wear and easy to adapt to, making them readily accepted by users.

Reduced Visual Fatigue: Since the power is gradual, the substitution for accommodation increases progressively as the viewing distance shortens, without fluctuations in accommodation, making visual fatigue less likely.

Clear Vision at All Distances: A single pair of glasses simultaneously satisfies distance, near, and all intermediate distance needs. This is especially beneficial for teachers, doctors, musicians, and computer operators—people who not only need to see distant and near objects clearly, but also need to see intermediate-distance objects such as blackboards, sheet music, and computer screens for most of their time. This is something no other lens besides progressive multifocal lenses can achieve.

Myopia Prevention in Youth: Currently endorsed by ophthalmology experts both domestically and internationally: “Adolescents should wear low-power convex lenses when reading and writing to reduce near accommodation, thereby alleviating or preventing the onset and progression of myopia.” This gives progressive multifocal lenses new significance and mission. Physiological studies have found that excessive use of the eye’s accommodative function can lead to “accommodative spasm,” or pseudomyopia. Continued development can result in longitudinal elongation of the eye axis, inducing “true myopia,” or axial myopia.

The external power of progressive lenses can be artificially combined with progressive power—using the deeper power at the top for distance vision and the shallower power at the bottom for near vision, allowing the eyeball to relax from over-accommodation. The continuously changing lens power replaces the “accommodative effort” that would otherwise be required, blocking the vicious cycle of accommodation → eye axis elongation. This makes the eye less prone to fatigue and slows the progression of myopia.

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Working overtime and staying up until 2 or 3 a.m. has become the normal lifestyle rhythm for today’s post-90s and post-00s generations. Your eyes are clearly exhausted, yet you just can’t tear yourself away from the tablet or put down the phone—why is that?

The truth is out! It turns out to be “blue light damage”—our brains are being tricked by our eyes. Let us introduce you to the invisible vision killer: “blue light.”

Question 1: What is blue light?
Blue light refers to light with wavelengths between 400nm and 480nm that carries relatively high energy. Blue light within this wavelength range can increase the toxin levels in the macular area of the eye, posing a serious threat to our retinal health.

Question 2: What are the hazards of blue light?
Not all blue light bands are harmful to the human eye. Blue light between 400 and 440 nanometers is considered harmful blue light, while blue light between 480 and 500 nanometers plays a role in regulating biological rhythms—sleep, mood, memory, and more are related to it, making it actually beneficial to the human body.

The damage blue light causes to the eyes is related to the duration and intensity of exposure. When the illuminance and exposure time exceed 2 hours, it can cause damage to the retina.

Question 3: What is the relationship between blue light and staying up late?

Blue light is everywhere in daily life, but harmful blue light comes from computer monitors, fluorescent lamps, mobile phones, digital products, display screens, LED lights, and other sources.
Blue light suppresses the secretion of melatonin, an important hormone that affects sleep. Its known functions include promoting sleep and regulating circadian rhythms. This explains why playing with your phone or tablet before bed leads to poor sleep quality or even difficulty falling asleep—the later you stay up, the harder it becomes to sleep.

This ultimately leads to eye fatigue, continuously deepening prescription glasses, poor nighttime sleep quality causing inability to concentrate on work during the day or focus on studying, seriously impacting our lives.

In the long run, blue light damage may let you experience the “joy” of staying up late, but it will also make you experience the tragedy of super thick lenses.

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Many parents panic when their child comes home from school saying they can’t see clearly. Without a second thought, they start scolding the child for playing on their phone all day, then drag them straight to an optical shop to get glasses. But this approach is completely wrong.
When you discover your child has declining vision or can’t see clearly, here are the first things you should do:
First: Talk to your child about how long the vision decline has been happening. Did the blurriness come on suddenly, or has it been going on for a long time?
Second: Has your child been getting enough rest lately? How is their schoolwork and homework load?
Third: Consider whether there might be causes other than myopia, such as nutritional imbalance, other eye conditions, or any history of eye injury.
Based on your child’s feedback, you can then determine the right course of action.
We know that when the human eye looks at distant objects, the ciliary muscle relaxes and accommodation eases; when looking at near objects, the ciliary muscle contracts and accommodation tenses. After prolonged near work, the ciliary muscle may be unable to recover, leading to myopia. Children have strong accommodative abilities, and short-term ciliary muscle dysfunction can recover with rest! This state is known as “pseudomyopia.” If glasses are prescribed immediately, it can gradually develop into true myopia. So it’s quite possible that the child has simply had too much homework recently and their eyes haven’t gotten enough rest. If anxious parents rush to get them glasses, the child may never be able to take them off again.
The correct approach is:

Take your child to a regular hospital for cycloplegic refraction (pupil dilation exam) to check for pseudomyopia.

Have a visual function examination to determine if accommodative insufficiency is present and whether vision training could improve the problem.

Based on the examination results from the hospital or qualified professionals, determine whether glasses are actually needed.

The above steps should be performed by a doctor with proper professional qualifications at a hospital!

As a professional eyewear supplier, we specialize in acetate eyewear, metal eyewear, and buffalo horn eyewear—offering style, function, and premium craftsmanship.

Progressive Multi-Focal Lenses
What are the obvious advantages of progressive lenses?
1.Continuous vision from far to near, clear at distance, intermediate and near ranges.
2.Aesthetic appearance with no visible dividing line.
3.No image jump.
4.Comfortable wearing experience, avoiding the trouble of frequently changing glasses.

Types of Lenses
-Suitable Users for Multi-Focal Lenses:
-Presbyopic people, especially early presbyopes.
-Those dissatisfied with wearing two pairs of glasses.
-Those dissatisfied with traditional bifocal lenses.
-Juvenile myopia patients.(Focus on lenses for slowing myopia progression in teenagers.

By occupation:People with frequent vision shifts; teachers (during lectures); supervisors (during meetings); card players, etc.
Unsuitable Users for Multi-Focal Lenses:
People with cervical spondylosis or migraine;Users with frequent reversed viewing distances, such as:high-altitude workers, people who often look up or sideways at close range (dentists, electrical maintenance workers), pilots, water & electricity workers, operators of large instruments, etc.

Notes for Adaptation:
Relatively long adaptation period;Adjust vision by turning the head;Pay attention to the distribution of visual zones.

Colored Lenses
Colored lenses are resin lenses dyed after substrate production, then hardened and coated.They enhance the fashion sense of the wearer.

PC Lenses
PC lenses are optical lenses made of polycarbonate, produced as thermoplastic resin lenses, while ordinary resin lenses are thermosetting

resin lenses.
Advantages: Ultra-high impact resistance, ultra-light weight;especially suitable for half-rim and rimless frames;environmentally friendly;currently the safest lenses in the world.
Disadvantages:Relatively low surface hardness;require special grinding wheels and methods for processing.

As a professional eyewear supplier, we are specialize in acetate eyewear and metal eyewear and buffalo horn eyewear.