myopic eye
Release time : 04/23/2025 09:30:01
With the increasing infiltration of electronic products into people's lives, there are more and more children suffering from myopia. The number of people with myopia is also becoming younger.
Some children do not take timely care of themselves after suffering from myopia, or mistakenly wear glasses, etc., making the myopia worse.
When a child suffers from myopia, it is not only inconvenient to wear glasses at any time, but sometimes it also affects normal life.
So, why do people get myopia? Can myopia be treated? How to prevent myopia? Why can people get myopia? If the eye is compared to a camera, the lens is like the lens of a camera, and the eyeball is like the obscura of a camera.
Since the curvature of the cornea is fixed before the child is 3 years old, it cannot be changed instantaneously.
In other words, only the "lens", or the lens, can be changed instantaneously.
To see clearly, the crystal lens constantly adjusts itself. For distant objects, it becomes flatter.
When you look at it close-up, it appears to be convex.
The accommodation function of the eye is closely related to the flexibility of the lens.
After the child's glasses are developed, the lens functions well, is very flexible, and has strong adjustment ability.
The lens gradually loses its flexibility with age.
Since the lens adjusts itself according to the distance of the object being seen, if the child uses the eyes closely for a long time, the ciliary muscles of the eyes will be tense and the lens will remain in a convex state.
At this time, the child will have some signs of myopia, such as not seeing clearly in the distance. This is pseudomyopia.
If the lens cannot return to its flat state for a long time, some children will become myopia.
In fact, myopia is a lifestyle-related disease and an evolution of survival of the fittest that humans adopt in order to adapt to modern lifestyles.
To cope with close work, we must have good close-up reading ability, which is the result of our eyes adapting to the environment.
In modern society, we are naturally adapted to the electronic devices like computers and phones.
Mild nearsightedness may not significantly impact the lives of most people. However, once it progresses to moderate to high degrees of myopia, leading to changes in the eye's axis and degeneration of the retina and choroid, it enters a pathological state of myopia. This can potentially lead to complications such as retinal detachment, retinal hemorrhage, and detachment of the vitreous after liquefaction. In severe cases, blindness may occur.
Therefore, parents need to identify the causes of myopia so they can take appropriate measures in advance.
Genetic Secrets to Myopia: How It is Inherited and Why Children Develop Myopia 1. Excessive Time Looking at Near Objects In cities, the towering skyscrapers limit one's field of vision, and due to limited outdoor activities, children spend most of their time looking at objects within a range of 5 meters. This lack of exposure to environments that encourage distant viewing weakens the ability for children to use their far-sightedness, thereby increasing their chances of developing myopia.
2. There's not enough time for outdoor activities. Nowadays, our living space is too cramped, and most children spend most of their time indoors. They seldom go outside to experience the vastness of nature. They spend a lot of time near their eyes, which are very adaptive. They can adjust themselves to accommodate the close-up distance.
Moreover, when spending time indoors, opportunities for watching TV and playing computer games increase. If these activities are not taken into account regarding distance and posture, it can easily lead to eye fatigue, which may result in a child developing myopia.
When participating in outdoor activities, the eyes automatically adjust to different distances, alternating between focusing on near and far objects, which allows the ciliary muscles to be adjusted and prevents fatigue.
Nowadays, for reasons such as safety and convenience, parents usually let their children play at home.
Even if we've scheduled a playdate for the little one, we'll mainly stick to indoor activities.
With children spending a lot of time looking at close objects, their eyes are under a lot of strain.
3. Frequent use of electronic products Nowadays, children have almost everyone a smartphone. They spend their free time playing games on it.
After returning home, they open their computers and the internet or watch TV. Frequent exposure to electronic devices and the strong light emitted by screens can cause intense stimulation to children's eyes. Additionally, using electronic devices with close distance to the screen can lead to myopia in children.
Beware! Electronic products can easily lead to myopia in babies. 4. Lighting too dim or too bright: Many parents are concerned that the lighting is not sufficient, causing their children to have difficulty seeing when reading and writing.
In fact, ophthalmologists believe that the light in children's reading and writing is not too dark, but too bright! The overly strong light can easily make the child's eyes feel tired.
Your child needs soft light and it has to come from the left side of their face.
Therefore, when children are reading or writing at night, they can choose a lamp with adjustable brightness, and adjust the brightness to a moderate level.
5. The paper used in books and the printing techniques have become increasingly refined with the advancement of science and technology. Children's books are printed with increasing sophistication, using more exquisite paper, which enhances their visual appeal. However, these beautifully printed books can also harm children's eyes.
The glossy effect of the copperplate paper is too strong at night, making it particularly noticeable and jarring to the eye.
This glare, medically known as glare, makes it harder for people to see what they're looking at and causes eyes to become more tired.
6. Wearing glasses is too casual. Some parents think that their children have myopia, so they immediately take their children to rough optometry and wear glasses, thinking that the child can see clearly.
However, without mydriatic optometry, it is impossible to know the child's accurate myopia degree, nor can it be known whether the child is true or pseudomyopic.
Some children are originally pseudomyopic and can return to normal after functional training, but parents go directly to the optical shop to match him with glasses without undergoing mydriasis. In this way, his eyes have to adjust themselves to adapt to the light entering the eyeball through the glasses.
During the long-term adaptation process, the eyeball slowly changes, which will become true myopia, or accelerate the progression of myopia.
7. The degree of myopia glasses is too high. When matching glasses to their children, many parents require them to be matched to a level where their children can see very clearly, such as 1.2-1.5.
In fact, it's not good.
Experienced opticians will first ask their children where to sit in class. If they sit in the first and second rows, their corrected vision will be about 0.8.
Even if you sit in the back row, you can see 1.0 after wearing glasses, and you won't wear anything above 1.2.
In this way, the child's myopia will not increase, or it will increase very slowly.
On the contrary, if he needs to be able to see as far as 1.5 with glasses and uses these glasses to read and write, his glasses power will definitely increase significantly next year.
Be careful! 6 reasons for myopia. Age is getting younger and younger. Should children wear glasses for myopia? Because he did not pay attention to his eye habits, the child became myopia.
Myopia is irreversible and cannot be completely treated, so many parents want to equip their children with a pair of glasses.
Some mothers don't want to take their children to get glasses after hearing the saying that "the sooner they wear glasses, the more myopia they will become." However, ophthalmology experts believe that from the perspective of eye hygiene, glasses should be worn when myopia reaches a certain extent.
Generally, for mild myopia below 100 degrees, you don't need to wear glasses, provided that your eyes are not tired when looking at objects and looking at the blackboard.
Some students and parents worry that wearing glasses will make the degree deeper and deeper, which is unfounded.
In addition, you must choose a professional optical-matching agency to match glasses for your children.
Not only is the mydriasis method more guaranteed, but it can also help children have a more comprehensive eye examination.
Some parents often choose an optical store at random, especially some non-standard optical stores to match glasses for their children. This is absolutely not advisable.
>> Children with myopia should or should not have glasses? Beware of falling into the misconceptions about myopia correction. Children develop myopia without a proper use of their eyes, leading to the wearing of glasses before they are even seven years old.
Children have developed myopia, and when parents take their children to get glasses, it's important to be cautious about falling into the following common misconceptions when choosing a pair of glasses.
1. The pupil is not dilated before glasses are fitted. During the first fitting, children need to be anisometropic for a slit test.
Dilating eye examination involves the instillation of a mydriatic drug into the eye, which many parents are concerned about and worry may have adverse effects on children. As a result, they delay the timing for children to be fitted with glasses.
In fact, mydriasis is achieved by administering a medication that affects the nerves controlling the pupil constrictor and dilator muscles, causing the pupil to become larger. Once the duration of the medication's effect has passed, the pupil naturally returns to its original size, without harming your vision.
Some parents who take their children to eyeglass stores for spectacles often cause the child's pseudo-myopia to remain unrecoverable or lead to an overly high prescription, thereby affecting the child's vision and damaging the eyes.
Therefore, it is necessary to have a professional doctor conduct the correct dilatation method for eyeglasses fitting for children.
2. The glasses you own are the most suitable. Nowadays, there are many eyeglass shops and a variety of lens and frame options available.
The prices of lenses in different frames vary greatly. When selecting lenses for their children, many parents blindly pursue high prices, believing that only expensive glasses are the best, and the most expensive glasses are suitable for children's eye development.
Ophthalmology experts believe that the most important prerequisite for children to choose glasses must suit them. Don't blindly pursue fashion and choose rimless frames or perforated frames.
When children under the age of 10 wear glasses, they can choose a glasses frame with a protective nose pad on the soft edge to avoid pressing on the bridge of the bridge.
By the time they are 10 years old, they can choose full-frame glasses.
Out of consideration for children's young and active age, resin and hard glasses should be considered first when selecting lenses for children. Because glass lenses are fragile, if the child accidentally falls, they will easily cause damage to the child's eyes.
Resin lenses mainly require accurate astigmatism axis, and the luminosity required must be accurate. There must be no scratches, bubbles and impurities on the lenses. The power of the prepared children's glasses must meet the quality inspection standards promulgated by the state.
The error of diopter should be within the required range of national standards.
>>Experts remind: Children often wear inferior glasses and can easily suffer from astigmatism. 3. Wear contact lenses for children Some parents think that the child is still young and it is not beautiful to drive the glasses frame. They also think that wearing glasses will make the child's eyes bulge, so they wear contact lenses for their children.
In fact, there is no need for children to choose to wear contact lenses, because the safety requirements of contact lenses are relatively high when using them, and some unscientific methods of use will cause serious damage to the cornea.
Children under the age of 18 should particularly avoid wearing contact lenses, as they may not properly care for them. There have been numerous cases of severe conjunctivitis due to the incorrect use of contact lenses in China.
4. Eyeglasses can be prescribed without an ophthalmological examination. Many parents find that their child's vision is poor, and often, in order to save time, they take their child to an eyeglass shop equipped with a computer for refraction and then promptly purchase the glasses for their child.
Some parents believe that simply getting their child's glasses is sufficient, without the need to visit an optometrist for an eye examination.
However, in reality, there are many reasons why children's vision may decline, not necessarily due to myopia.
Certain fundus lesions also manifest as visual impairment.
Therefore, a systematic ophthalmological examination should be conducted before refractive surgery to rule out conditions such as strabismus, congenital cataract, congenital glaucoma, congenital retinopathy, congenital nystagmus, etc. Only after confirming the child's myopia through these examinations can the condition of myopia be diagnosed.
Many parents often misdiagnose their children as having "myopia", only to discover the condition at a hospital examination when it is too late for optimal treatment.
Parents also regretted it.
Opthalmologists remind parents that if they notice any issues with their child's vision, it is crucial to seek a comprehensive examination at an ophthalmologist. Only after undergoing such an examination can one decide whether the condition is indeed a refractive error and, based on the doctor's advice, select appropriate glasses for the child.
When a child has a high rate of myopia, parents must be vigilant to avoid common mistakes in eyeglass prescriptions. To prevent childhood myopia, it is essential for parents to enforce good reading and writing habits from the start.
Start by addressing reading and writing postures: 1. Pay attention to distance - Tell your child that when reading or doing homework, they should keep their eyes about 30cm away from the desk.
The distance between the body and the desk should be one fist's length, and the hand should be 1 inch away from the pen tip.
Do not lie on the desk or twist your body. Do not develop the habit of reading in bed. Reading in bed can make books too close to the eyes, and children may even lie down to read, which is very easy to develop myopia.
2. Attention to Lighting: When children write or read, it is essential to have appropriate lighting to prevent them from straining their eyesight and harming their vision.
Also, light should come from the left or front left, so that the shadow of your hand should not block the light when writing.
Don't read or write in too dark or bright light.
3. Develop good eye habits In order to prevent myopia, parents need to supervise their children. Children should not read and write for too long, and have a 10-minute rest after 30-40 minutes.
Look into the distance to rest your ciliary muscles properly, and do eye exercises.
Additionally, it is important to inform the child that they should not read books while traveling in a moving vehicle, nor should they engage in reading or playing with electronic devices while walking. It is also necessary to control the amount of time spent using electronic devices.
4. Encourage appropriate outdoor activities: Parents should not solely encourage their children to study in front of a desk. Instead, they should encourage them to participate in outdoor activities. Not only does this help to exercise the body, but it is also very effective in protecting eyesight.
Particularly, providing children with opportunities to interact with nature and engaging them in outdoor activities on lush green grass.
Green light is short-wavelength, and red light is long-wavelength. Short-wavelength light has a shorter focal length, which is beneficial for the prevention of myopia, while long-wavelength light has a longer focal length, which is detrimental to the prevention of myopia.
>> For elementary school students, the use of eyes is high. How to prevent myopia in children? Prevention of myopia in children can be achieved by consuming these foods. In addition to urging children to develop good eye habits, parents can encourage their children to consume more beneficial foods for the eyes, which will make their eyes healthier and more vital, preventing myopia.
Supply children with enough calcium, phosphorus and vitamins A, B2, B1, C, and reduce sweets.
Inappropriate diets leading to nutritional deficiencies are also one of the important reasons for the occurrence and development of myopia in children. It is beneficial to prevent myopia to supplement proteins, calcium and phosphorus by eating more vegetables and fruits such as carrots, tomatoes, bean sprouts, oranges, grapes and dates.
Foods Rich in Vitamin A.
Vitamin A has a great impact on vision. Night blindness, dry eye, etc. are all related to lack of vitamin A.
The best food sources of vitamin A are various animal liver, cod liver oil, fish eggs, eggs, etc.
Vitamin A contained in vegetables such as carrots, spinach, amaranth, alfalfa, red sweet potatoes, pumpkin, and green peppers can be converted into vitamin A in the body.
Foods rich in vitamin C.
Vitamin C can weaken the damage of light and oxygen to the lens of the eye.
Mothers can prepare fresh fruits and vegetables such as tomatoes, bell peppers, hawthorn and lemons for their children.
Give your children more calcium-rich foods.
Calcium not only helps children grow taller, but sufficient calcium also helps protect children's vision.
Medical experts point out that calcium deficiency is one of the important causes of poor vision development and even myopia.
Milk, soy products, fish and shrimp, animal bones, etc., should also pay attention to mixing with animal liver, egg yolks, green vegetables and other foods rich in vitamin D to increase the absorption and utilization of calcium.
"To prevent myopia among teenagers, parents should pay attention not to enter six major misunderstandings. * The medical part covered in this article is for reading reference only. "
If you feel unwell, it is recommended to seek medical attention immediately, and the medical diagnosis and treatment will be subject to offline diagnosis.