The basics of eyeglass fitting
 |
Description
Book Introduction
“Even an optician with 17 years of experience was impressed by the fitting know-how in this book!”
From fitting theory to eyeglass adjustment techniques, to 30 years of clinical experience.
Have you ever gone to an optician, got a new pair of glasses fitted, and then asked, "Can you fit these too?" Then, you pulled out a pair you already had and asked the optician to do the fitting. Has the optician ever refused, saying, "They might break, so we can't do that for you?" Unlike in the past, fitting often seems less important to opticians.
From the perspective of a consumer who is getting glasses, this is really frustrating.
If you go to get new glasses and the prescription hasn't changed, but you feel dizzy or have a headache and can't wear them, you might find it really strange.
In this case, even if the consumer buys the glasses and returns, he or she will never return to that optical store again.
Even though you bought those uncomfortable glasses, there are many cases where you don't wear them.
Originally, opticians were people who worked in the field of health care to help people by relieving the discomfort of the eyes, such as 'not being able to see well'.
However, after this experience, consumers may end up dismissing opticians as mere businessmen.
This would be even more so if you asked your optician to adjust your lenses but they were not adjusted and you were treated as a 'really picky customer'.
If you feel dizzy even though you have been fitted with glasses with the same prescription, your optician will often check the prescription again, but in reality, it is much more likely that the cause is incorrect fitting.
Son Jae-hwan, author of “The Essentials of Eyeglass Fitting,” emphasizes that “fitting is the first and last process to complete glasses.”
This book covers all eyeglass adjustment techniques, from fitting theory to practice, based on the author's 30 years of clinical experience.
From fitting theory to eyeglass adjustment techniques, to 30 years of clinical experience.
Have you ever gone to an optician, got a new pair of glasses fitted, and then asked, "Can you fit these too?" Then, you pulled out a pair you already had and asked the optician to do the fitting. Has the optician ever refused, saying, "They might break, so we can't do that for you?" Unlike in the past, fitting often seems less important to opticians.
From the perspective of a consumer who is getting glasses, this is really frustrating.
If you go to get new glasses and the prescription hasn't changed, but you feel dizzy or have a headache and can't wear them, you might find it really strange.
In this case, even if the consumer buys the glasses and returns, he or she will never return to that optical store again.
Even though you bought those uncomfortable glasses, there are many cases where you don't wear them.
Originally, opticians were people who worked in the field of health care to help people by relieving the discomfort of the eyes, such as 'not being able to see well'.
However, after this experience, consumers may end up dismissing opticians as mere businessmen.
This would be even more so if you asked your optician to adjust your lenses but they were not adjusted and you were treated as a 'really picky customer'.
If you feel dizzy even though you have been fitted with glasses with the same prescription, your optician will often check the prescription again, but in reality, it is much more likely that the cause is incorrect fitting.
Son Jae-hwan, author of “The Essentials of Eyeglass Fitting,” emphasizes that “fitting is the first and last process to complete glasses.”
This book covers all eyeglass adjustment techniques, from fitting theory to practice, based on the author's 30 years of clinical experience.
- You can preview some of the book's contents.
Preview
index
Recommendation 1 - I finally threw away my glasses that were slipping and pressing down.
Recommendation 2 - Experience and wisdom accumulated over 30 years in the field
Recommendation 3 - Fitting Results Come from Attitude
Recommendation 4 - Fitting is the beginning and end of glasses.
Prologue _ To become a glasses fitting master
Chapter 1: The Perfection of Glasses Comes Through Fitting
Why Customers Are Dissatisfied with Their Fittings | Fittings Must Satisfy Three Keys | Principles to Follow When Getting Your Glasses Fitted
Chapter 2: Basic Theory You Need to Know for Eyeglass Fitting
Names of each part of the eyeglass frame | Anatomy for fitting eyeglass frames | Understanding the nasal bone makes eyeglasses lighter | Fitting optics | Things to know about leg opening | Leg bending for weight distribution | Back attachment to match the shape of the temporal bone and ears | Final adjustments for eyeglass fitting
Chapter 3: Fast and accurate fitting if you follow the fitting order
Check the facial angle and front angle｜Basic fitting bridge spread width｜Basic fitting nose pad｜Basic fitting contact point setting｜Basic fitting ear attachment｜Customer wearing｜Visually observing｜Adjusting the precision fitting bridge spread width｜Adjusting the precision fitting nose pad｜Checking the contact point position of the precision fitting｜Checking the gap between the contact points｜Adjusting the precision fitting ear attachment angle｜Pull test
Chapter 4: Fitting Practice
Eyeglass Tools | How to Change the Shape of Your Glasses | A Practical Guide to Fitting Practice
Chapter 5: Clinical Rules for Eyeglass Fitting
Posture is the basis of fitting｜After fitting, ask questions using positive language｜Pulling pressure is important｜You must learn self-sensitivity through force control｜Measuring left-right balance, friction, pressure, and power distribution is done with your hands｜Fitting that is just hanging is prohibited｜Check the fitting information of the customer's previous glasses｜Basic fitting is a must｜Manage the fitting time｜Fitting is done with your hands, not your mouth｜Fitting must be satisfactory within 3 attempts｜Custom fitting is done as if scanning the head with a 3D scanner｜Fitting thin glasses frames creates friction｜Tight fitting vs. comfortable fitting, understand the customer's tendencies｜Each person has their own fitting points that they consider important｜Left-right balance is important for comfortable fitting｜Set your own standards for each fitting step｜If fitting doesn't work, start over from the basics｜Tight fitting for people with thin faces｜There is no right answer in fitting｜Setting the zero point is important｜The best fitting is to utilize the magnetic effect｜Use the three principles of fitting｜Straw sandal seller Story | A craftsman is someone who strives in one direction.
Chapter 6: Eyeglass Fitting by Claim Case
Causes of fitting claims｜Cases of claims involving slippage｜Cases of claims regarding tight fitting｜When glasses are not properly fitted｜Cases where the temples are not balanced｜Cases where fitting is difficult｜Cases where temple opening width is important｜Cases where pressure at the contact points and friction at the temporal area are important｜Customers who complain of discomfort are rarely wrong｜Customers who have difficulty seeing due to a slight difference in fitting｜Sensitive customers who wear multifocal lenses
References
Epilogue _ The grandfather who set the standard for glasses
Recommendation 2 - Experience and wisdom accumulated over 30 years in the field
Recommendation 3 - Fitting Results Come from Attitude
Recommendation 4 - Fitting is the beginning and end of glasses.
Prologue _ To become a glasses fitting master
Chapter 1: The Perfection of Glasses Comes Through Fitting
Why Customers Are Dissatisfied with Their Fittings | Fittings Must Satisfy Three Keys | Principles to Follow When Getting Your Glasses Fitted
Chapter 2: Basic Theory You Need to Know for Eyeglass Fitting
Names of each part of the eyeglass frame | Anatomy for fitting eyeglass frames | Understanding the nasal bone makes eyeglasses lighter | Fitting optics | Things to know about leg opening | Leg bending for weight distribution | Back attachment to match the shape of the temporal bone and ears | Final adjustments for eyeglass fitting
Chapter 3: Fast and accurate fitting if you follow the fitting order
Check the facial angle and front angle｜Basic fitting bridge spread width｜Basic fitting nose pad｜Basic fitting contact point setting｜Basic fitting ear attachment｜Customer wearing｜Visually observing｜Adjusting the precision fitting bridge spread width｜Adjusting the precision fitting nose pad｜Checking the contact point position of the precision fitting｜Checking the gap between the contact points｜Adjusting the precision fitting ear attachment angle｜Pull test
Chapter 4: Fitting Practice
Eyeglass Tools | How to Change the Shape of Your Glasses | A Practical Guide to Fitting Practice
Chapter 5: Clinical Rules for Eyeglass Fitting
Posture is the basis of fitting｜After fitting, ask questions using positive language｜Pulling pressure is important｜You must learn self-sensitivity through force control｜Measuring left-right balance, friction, pressure, and power distribution is done with your hands｜Fitting that is just hanging is prohibited｜Check the fitting information of the customer's previous glasses｜Basic fitting is a must｜Manage the fitting time｜Fitting is done with your hands, not your mouth｜Fitting must be satisfactory within 3 attempts｜Custom fitting is done as if scanning the head with a 3D scanner｜Fitting thin glasses frames creates friction｜Tight fitting vs. comfortable fitting, understand the customer's tendencies｜Each person has their own fitting points that they consider important｜Left-right balance is important for comfortable fitting｜Set your own standards for each fitting step｜If fitting doesn't work, start over from the basics｜Tight fitting for people with thin faces｜There is no right answer in fitting｜Setting the zero point is important｜The best fitting is to utilize the magnetic effect｜Use the three principles of fitting｜Straw sandal seller Story | A craftsman is someone who strives in one direction.
Chapter 6: Eyeglass Fitting by Claim Case
Causes of fitting claims｜Cases of claims involving slippage｜Cases of claims regarding tight fitting｜When glasses are not properly fitted｜Cases where the temples are not balanced｜Cases where fitting is difficult｜Cases where temple opening width is important｜Cases where pressure at the contact points and friction at the temporal area are important｜Customers who complain of discomfort are rarely wrong｜Customers who have difficulty seeing due to a slight difference in fitting｜Sensitive customers who wear multifocal lenses
References
Epilogue _ The grandfather who set the standard for glasses
Into the book
An optician must perform an accurate vision test and binocular function test to prescribe the best vision, and after precise preparation and processing, the final process must be completed to maintain vision and ensure comfort when wearing glasses for a long time.
The technique at this stage is called 'fitting'.
The final process, fitting technology, can also affect changes in vision, so it is important to be able to demonstrate meticulous and precise techniques.
Even if there is an incorrect prescription, it can be corrected to some extent with a good fitting.
On the other hand, no matter how good the prescription is, if the fitting is wrong, the result will be an incorrect glasses prescription.
Therefore, fitting is very important for opticians to ensure that customers can wear glasses comfortably without any problems.
--- p.23
If the temples of the glasses are pressed against the temples because the angle of the temples is narrower than the size of the head, it can cause skin allergies and pain, which can even lead to a headache.
Also, the plating on the glasses frame can quickly peel off due to sweat on the skin, so be sure to leave some space and avoid pressing down on it.
If you follow this part well, you can reduce customer complaints due to poor plating of eyeglass frames compared to general eyeglass stores.
In my case, I always keep this part.
Perhaps for this reason, the number of customers who visit us due to poor plating and coating of eyeglass frames is very small.
--- p.66
To prevent the glasses from slipping down and to direct the weight backward, the temple ends should be fitted to the shape of the temporal bone behind the ears.
This fit is difficult to discern by sight alone, so it must be judged by touch.
It is a task that requires advanced skills.
When the bridge is adjusted precisely like this, a force is generated that pulls the glasses backward, creating a natural wearing sensation as if the glasses are being sucked into the head.
This effect is called the magnet effect.
This is the final adjustment for fitting the glasses, and the most important adjustment to secure the glasses to your head.
--- p.74
Since it is impossible to measure the facial angle individually, it is important to familiarize yourself with the average basic angle by looking at the basic facial angles of eyeglass frames displayed on the shelf.
Once you get used to the feeling that this angle is about 5° with your eyes, your eyes will remember that angle.
It would be a good idea to diagnose customers' glasses based on the remembered angle.
“My eyes should be like a protractor.” That’s what I always emphasize to opticians.
--- p.81
Most of our faces tend to get slightly wider towards the back of the head.
So, most of the spread widths are spread at an angle of about 95° based on the front of the standard size, which becomes an 11-character parallel spread width.
Currently, many opticians wear the glasses without any fitting modifications at the basic 80-85° angle produced by the glasses factory.
If you fit with this angle of spread, no friction will be generated and it will be an incorrect fit.
Advanced fittings should always utilize friction.
The most basic adjustment for generating friction is to adjust the spread width in the shape of an 11.
--- p.92
The key when bending is to move up and down slightly based on the contact point to create the curve of the bend.
First, ① bend slightly with equal spacing on both sides based on the contact point (center of point), ② then move upward and bend slightly, ③ and finally move downward from the contact point and bend slightly harder.
If you apply too little force when bending downwards at this time, the bend will become loose and you will not get a smooth curve.
--- p.152
These are the glasses of a middle school girl.
These are typical glasses that just hang over your head.
This is a fitting that creates pressure by pressing only on the side of the ear.
He said he had a hard time because he kept slipping while studying.
The reality is that many opticians are doing this type of fitting.
A fitting that is just hanging on can never bring customer satisfaction.
As I do fittings, I often feel that eyeglass fitting is a very profound and difficult manual technique that combines anatomical, mechanical, optical, and psychological elements.
Glasses that are just hanging on are like uncomfortable clothes.
No matter how good the fabric is, ready-made clothes that don't fit your body will only cover your body and be uncomfortable.
--- p.176-177
If you look at the field, you can see that opticians are trying to persuade and explain verbally rather than performing a convincing fitting with their hands.
When that happens, most customers just hear that and leave.
If an expert explains it that way, there won't be many who would disagree.
But if even one of the customers raises an objection, the optician starts sweating profusely.
If your persuasion doesn't work, you're in trouble.
When asked later what happened, the optician might say that the customer was sensitive or that it was a real problem.
But is that really the customer's fault? In many cases like this, the optician often fails to assess the situation and instead tries to blame everything on the customer.
Opticians should be mindful of their own shortcomings and have the mindset to learn from their clients.
The technique at this stage is called 'fitting'.
The final process, fitting technology, can also affect changes in vision, so it is important to be able to demonstrate meticulous and precise techniques.
Even if there is an incorrect prescription, it can be corrected to some extent with a good fitting.
On the other hand, no matter how good the prescription is, if the fitting is wrong, the result will be an incorrect glasses prescription.
Therefore, fitting is very important for opticians to ensure that customers can wear glasses comfortably without any problems.
--- p.23
If the temples of the glasses are pressed against the temples because the angle of the temples is narrower than the size of the head, it can cause skin allergies and pain, which can even lead to a headache.
Also, the plating on the glasses frame can quickly peel off due to sweat on the skin, so be sure to leave some space and avoid pressing down on it.
If you follow this part well, you can reduce customer complaints due to poor plating of eyeglass frames compared to general eyeglass stores.
In my case, I always keep this part.
Perhaps for this reason, the number of customers who visit us due to poor plating and coating of eyeglass frames is very small.
--- p.66
To prevent the glasses from slipping down and to direct the weight backward, the temple ends should be fitted to the shape of the temporal bone behind the ears.
This fit is difficult to discern by sight alone, so it must be judged by touch.
It is a task that requires advanced skills.
When the bridge is adjusted precisely like this, a force is generated that pulls the glasses backward, creating a natural wearing sensation as if the glasses are being sucked into the head.
This effect is called the magnet effect.
This is the final adjustment for fitting the glasses, and the most important adjustment to secure the glasses to your head.
--- p.74
Since it is impossible to measure the facial angle individually, it is important to familiarize yourself with the average basic angle by looking at the basic facial angles of eyeglass frames displayed on the shelf.
Once you get used to the feeling that this angle is about 5° with your eyes, your eyes will remember that angle.
It would be a good idea to diagnose customers' glasses based on the remembered angle.
“My eyes should be like a protractor.” That’s what I always emphasize to opticians.
--- p.81
Most of our faces tend to get slightly wider towards the back of the head.
So, most of the spread widths are spread at an angle of about 95° based on the front of the standard size, which becomes an 11-character parallel spread width.
Currently, many opticians wear the glasses without any fitting modifications at the basic 80-85° angle produced by the glasses factory.
If you fit with this angle of spread, no friction will be generated and it will be an incorrect fit.
Advanced fittings should always utilize friction.
The most basic adjustment for generating friction is to adjust the spread width in the shape of an 11.
--- p.92
The key when bending is to move up and down slightly based on the contact point to create the curve of the bend.
First, ① bend slightly with equal spacing on both sides based on the contact point (center of point), ② then move upward and bend slightly, ③ and finally move downward from the contact point and bend slightly harder.
If you apply too little force when bending downwards at this time, the bend will become loose and you will not get a smooth curve.
--- p.152
These are the glasses of a middle school girl.
These are typical glasses that just hang over your head.
This is a fitting that creates pressure by pressing only on the side of the ear.
He said he had a hard time because he kept slipping while studying.
The reality is that many opticians are doing this type of fitting.
A fitting that is just hanging on can never bring customer satisfaction.
As I do fittings, I often feel that eyeglass fitting is a very profound and difficult manual technique that combines anatomical, mechanical, optical, and psychological elements.
Glasses that are just hanging on are like uncomfortable clothes.
No matter how good the fabric is, ready-made clothes that don't fit your body will only cover your body and be uncomfortable.
--- p.176-177
If you look at the field, you can see that opticians are trying to persuade and explain verbally rather than performing a convincing fitting with their hands.
When that happens, most customers just hear that and leave.
If an expert explains it that way, there won't be many who would disagree.
But if even one of the customers raises an objection, the optician starts sweating profusely.
If your persuasion doesn't work, you're in trouble.
When asked later what happened, the optician might say that the customer was sensitive or that it was a real problem.
But is that really the customer's fault? In many cases like this, the optician often fails to assess the situation and instead tries to blame everything on the customer.
Opticians should be mindful of their own shortcomings and have the mindset to learn from their clients.
--- p.183
Publisher's Review
“Glasses are complete only when they are adjusted to your prescription and fit your face!”
Anatomical, optical, and aesthetic fitting to correct drooping, compression, and tilting
“We focus on the people who wear glasses, not the glasses themselves.” This is the corporate value that Jaehwan Son, author of “The Essentials of Eyeglass Fitting,” considers most important when running an optical shop.
He is an entrepreneur who runs eyewear companies including Mugeuk Optical, Three Factory, Ideco, and Wonka Optical, and is an optician who has opened over 20 eyewear stores over the past 30 years.
Even now, he is performing eye examinations, dispensing, and fittings on site.
There were two things he had promised himself while working as an optician. One of them was that he would not wander off to other places even if he made money, but would only continue working in the eyewear business.
Another thing was that I wanted to do something helpful for the eyewear industry.
This book is the result of my deep reflection on the question, "What can I do to advance the eyewear industry?" and the systematic documentation of fittings based on 30 years of clinical data.
He founded the 'Korea Optical Academy' to share with other opticians the experiences he had learned and felt in the field for over 30 years, and this book was written as a textbook to be used while giving fitting classes there.
It is said that 30 years ago, the eyewear industry was making eyewear by hand using manual ophthalmic machines.
It is said that at that time, the directors of optician shops forbade opticians to use automatic ophthalmic lenses, saying that they needed to learn the feel of their hands.
“I am the last of the spectacle fitting technicians who used a manual spectacle fitting machine,” says the author, who emphasizes the importance of raising the bar for “good” fitting skills and practicing a lot.
Ultimately, you have to learn your own standards and your own sensibilities, and the only way to acquire them is through practice.
So he says we should make our customers our teachers.
The author laments that in the field, opticians often try to persuade customers verbally rather than with their hands when they raise an objection.
There are customers who just go along without saying anything when an optician, who is a professional, says something, but there are many who say that the customer is sensitive or that it is a lie if they try to persuade them by saying, “It will be fine once you get used to it” and it doesn’t work.
However, in clinical practice, if you listen carefully to what the customer says and judge it, you can definitely find the cause of the discomfort and a solution.
To become a fitting expert, an optician must strive to understand the customer.
Customers who feel uncomfortable are not nitpicking because they are picky, but because they have developed a keen sense of error.
Therefore, opticians must also acquire a sense that does not allow even a 1mm error.
Let's look at one example, the case of a married couple.
Both of them were fitted with multifocal lenses, and while the wife had no problems, the husband was quite sensitive.
He says that he has rarely been satisfied with the glasses he has had.
He said he was always dissatisfied with his glasses because he had some discomfort and the optician couldn't solve it even after visiting him again.
My husband had a typical trapezoid-shaped face, so I had it fitted and tried it on.
He said that unexpectedly, he moved his eyes left and right and blinked, and the gap between the left and right lenses was different, so his right eye seemed like it was going to pop out.
I had some concerns, so I received the glasses and analyzed them again, and the difference in the width of the right eyelid was about 1mm more than the left.
After adjusting the facial angle, nose balance, and flare width in the fitting order from the beginning, the patient was satisfied and said, “It’s okay now.”
The contents of this book, which contains clinical cases for each claim, are largely divided into three parts.
One is the theoretical background on fitting, another is the clinical principles, and the last is the clinical skills accumulated through 30 years of clinical cases.
As you examine the author's meticulousness and detail as you examine the ironclad rules of eyeglass fitting, such as maintaining a stable posture, considering the distribution of force such as balance, friction, and pressure, utilizing the magnetic effect, avoiding fitting that is just hanging, and if it doesn't work, going back to the beginning and starting over from the basic fitting, you can feel the author's sensitivity and detail.
It feels like the author, a fitting expert, has deeply reflected on how a single pair of glasses can make people's daily lives more comfortable.
The reason why opticians must place importance on fitting is because if the fitting is not done properly, it can often result in discomfort in vision.
Opticians should never overlook fitting, as it can negatively affect not only the wearer's visual quality but also their brain activity.
However, since fitting is rarely a part of the questions assigned to the national exam for opticians, there is no reason to pay attention to fitting while studying to become an optician, and there is no way that someone who is just starting out as an optician can be good at fitting.
Typical symptoms of improper fitting include sagging, leaning to one side, pain in the nose, ears, or head, and fatigue. All of these are due to an imbalance in the fitting mechanics.
The real problem is that there are few opticians in the field who can perfectly solve these problems.
Looking at the reviews of students who took the Korean Optical Academy, opticians with 8, 10, 15, and even 17 years of experience realized their shortcomings, learned practice methods, and were surprised by the systematic education.
At first, many people were skeptical, but now they are praising the company for its confidence in customer service.
Anatomical, optical, and aesthetic fitting to correct drooping, compression, and tilting
“We focus on the people who wear glasses, not the glasses themselves.” This is the corporate value that Jaehwan Son, author of “The Essentials of Eyeglass Fitting,” considers most important when running an optical shop.
He is an entrepreneur who runs eyewear companies including Mugeuk Optical, Three Factory, Ideco, and Wonka Optical, and is an optician who has opened over 20 eyewear stores over the past 30 years.
Even now, he is performing eye examinations, dispensing, and fittings on site.
There were two things he had promised himself while working as an optician. One of them was that he would not wander off to other places even if he made money, but would only continue working in the eyewear business.
Another thing was that I wanted to do something helpful for the eyewear industry.
This book is the result of my deep reflection on the question, "What can I do to advance the eyewear industry?" and the systematic documentation of fittings based on 30 years of clinical data.
He founded the 'Korea Optical Academy' to share with other opticians the experiences he had learned and felt in the field for over 30 years, and this book was written as a textbook to be used while giving fitting classes there.
It is said that 30 years ago, the eyewear industry was making eyewear by hand using manual ophthalmic machines.
It is said that at that time, the directors of optician shops forbade opticians to use automatic ophthalmic lenses, saying that they needed to learn the feel of their hands.
“I am the last of the spectacle fitting technicians who used a manual spectacle fitting machine,” says the author, who emphasizes the importance of raising the bar for “good” fitting skills and practicing a lot.
Ultimately, you have to learn your own standards and your own sensibilities, and the only way to acquire them is through practice.
So he says we should make our customers our teachers.
The author laments that in the field, opticians often try to persuade customers verbally rather than with their hands when they raise an objection.
There are customers who just go along without saying anything when an optician, who is a professional, says something, but there are many who say that the customer is sensitive or that it is a lie if they try to persuade them by saying, “It will be fine once you get used to it” and it doesn’t work.
However, in clinical practice, if you listen carefully to what the customer says and judge it, you can definitely find the cause of the discomfort and a solution.
To become a fitting expert, an optician must strive to understand the customer.
Customers who feel uncomfortable are not nitpicking because they are picky, but because they have developed a keen sense of error.
Therefore, opticians must also acquire a sense that does not allow even a 1mm error.
Let's look at one example, the case of a married couple.
Both of them were fitted with multifocal lenses, and while the wife had no problems, the husband was quite sensitive.
He says that he has rarely been satisfied with the glasses he has had.
He said he was always dissatisfied with his glasses because he had some discomfort and the optician couldn't solve it even after visiting him again.
My husband had a typical trapezoid-shaped face, so I had it fitted and tried it on.
He said that unexpectedly, he moved his eyes left and right and blinked, and the gap between the left and right lenses was different, so his right eye seemed like it was going to pop out.
I had some concerns, so I received the glasses and analyzed them again, and the difference in the width of the right eyelid was about 1mm more than the left.
After adjusting the facial angle, nose balance, and flare width in the fitting order from the beginning, the patient was satisfied and said, “It’s okay now.”
The contents of this book, which contains clinical cases for each claim, are largely divided into three parts.
One is the theoretical background on fitting, another is the clinical principles, and the last is the clinical skills accumulated through 30 years of clinical cases.
As you examine the author's meticulousness and detail as you examine the ironclad rules of eyeglass fitting, such as maintaining a stable posture, considering the distribution of force such as balance, friction, and pressure, utilizing the magnetic effect, avoiding fitting that is just hanging, and if it doesn't work, going back to the beginning and starting over from the basic fitting, you can feel the author's sensitivity and detail.
It feels like the author, a fitting expert, has deeply reflected on how a single pair of glasses can make people's daily lives more comfortable.
The reason why opticians must place importance on fitting is because if the fitting is not done properly, it can often result in discomfort in vision.
Opticians should never overlook fitting, as it can negatively affect not only the wearer's visual quality but also their brain activity.
However, since fitting is rarely a part of the questions assigned to the national exam for opticians, there is no reason to pay attention to fitting while studying to become an optician, and there is no way that someone who is just starting out as an optician can be good at fitting.
Typical symptoms of improper fitting include sagging, leaning to one side, pain in the nose, ears, or head, and fatigue. All of these are due to an imbalance in the fitting mechanics.
The real problem is that there are few opticians in the field who can perfectly solve these problems.
Looking at the reviews of students who took the Korean Optical Academy, opticians with 8, 10, 15, and even 17 years of experience realized their shortcomings, learned practice methods, and were surprised by the systematic education.
At first, many people were skeptical, but now they are praising the company for its confidence in customer service.
GOODS SPECIFICS
- Date of issue: May 24, 2022
- Page count, weight, size: 256 pages | 600g | 185*236*15mm
- ISBN13: 9791192072555
- ISBN10: 1192072553
You may also like
카테고리
korean
korean
![ELLE 엘르 스페셜 에디션 A형 : 12월 [2025]](http://librairie.coreenne.fr/cdn/shop/files/b8e27a3de6c9538896439686c6b0e8fb.jpg?v=1766436872&width=3840)
