People who suffer from myopia see distant things and less clearly if they clearly see, they often need to squint your eyes . Many signs and symptoms of myopia in children and adults will be named in this article
Before the introduction of some signs and symptoms of myopia, you also need to know what is myopia and what you can do with our eyes.
I. What is myopia?
Myopia is the condition when a person can see things clearly in the distance close (reading or working on the computer), but difficult to see distant objects (traffic signs or bus). Nearsightedness occurs when the eye can not focus light rays exactly on the retina of the eye. We can also define myopia is a function of a false state of the visual apparatus, when people can only see things clearly in the short distant. If we consider the eye as a camera and lens and cornea as a glass: the light passes through and makes a redirect light rays to converge on the retina. And the retina can be compared to the film of take pictures . In the retina it contains many cells sensitive to light and convert light signals into nerve impulses that travel through the optic nerve to the brain. The image will be good if the cornea and lens can be adjusted exactly parallel light rays to converge on the retina. Therefore, healthy people can clearly see distant objects. When nearsighted, the light rays converge in front of the retina and, as a result, the object image is not clearly visible. This phenomenon can occur due to two reasons:
Axis eyeball is longer than normal patients of the retina that pushed back beyond the focus. Normally, the long axis of the eyeball is about 23 mm. In people with myopia, this measurement may be 30 mm or more. Once the axis of the eye is longer than each millimeter, which will cause the increase in number of myopia, three diopters.
- cornea and lens refract light too strong
- Axis eyeball is longer than normal patients of the retina that pushed back beyond the focus. Normally, the long axis of the eyeball is about 23 mm. In people with myopia, this measurement may be 30 mm or more. Once the axis of the eye is longer than every millimeter will cause the level of myopia increased by 3 diopters
Myopia reduces vision of humans, so we have difficulties in our life daily. Students age 7-16 years are very easy to suffer from myopia degree progresses faster due to the level of work looking at near many eyes is dangerous because myopia appears as soon as the level of increased vessels as quickly.
II. Why do people suffer from myopia?
There are many causes of myopia. The main causes are:
- read books or work must use their eyes staring a long time in the vicinity, in poor light conditions.
- Genetic factors, due to some structural characteristics of eyeball or differences in metabolism body.
- Because the lid is less developed, can not afford regulators to make eyes adapt to a different range of view.
If the lid has to be weak effort for a long time, in addition to increasing the risk of myopia.
III. When myopia appear and develop?
Refraction usually occurs at the age of 8 to 10. The diopter level will gradually increase and stops when it reaches 16 or 18 years age. Each year will increase 0.5 1 degree on average. Myopia soon the fastest level appears as soon above.
There are also some cases refractive appears while it is still very small, often related to genetic factors. Some cases occurred in adults when there are events on health and after pregnancy, accident or disease new refraction may appear or make the level of diopters worse
If myopia can be detected in time, wear glasses in degrees clockwise and monitor periodically the refraction will stabilize, after 40 years decrease due to the neutral condition presbyopia. In some cases (myopia or astigmatism ), there are a number of complications such as the phenomenon of flies, a flash of light, and is strongly retina can lead to blind .
IV. Signs and symptoms of myopia in children
Normally, nearsightedness occurs when children are small and easy to detect in the age of going to school. Some signs and symptoms of myopia in children is the child sees distant things less clearly. When watching television, children have to get closer so they can see clearer.
80% of the things children learn in school are received by the eyes. What this means is that the refractive error (myopia, astigmatism, farsightedness), if it does not fit, can severely affect learning outcomes and child development. Parents should give children eye exams if they have these signs and symptoms of myopia
1. Often sit near a TV or bending over to read
the habit of sitting close to the TV may be the expression of vision. If the child can not clearly see the image on the screen or having to duck when read, the baby may have myopia.
Frequently 2. Rubbing Eyes
Children often they rub their eyes when they are tired or upset. If your baby rubs his eyes when it comes to watching something or when they are playing, it is very likely they are having a problem of myopia.
Read more: Top 6 Best Exercises eye for astigmatism
3. Read wrong or you have to use your finger to guide the eye
When children are learning to read and try to read aloud the words, children often initially used to point your finger under of words to be read. Normally, after a while getting used to, they can concentrate and not miss a place to read. If after reading a while, children still trace letters with their fingers, ask the child to try to read aloud without pointing. If children do not get this done, take them to have a vision test. In fact, this is also one of the signs and symptoms of the most common myopia that people will have if you are suffering from this problem of eye health. Do not look down, but be careful of it, as it can lead to several negative to your routine of daily life effects.
4. Sensitivity to light or water more than normal
Have your children been too sensitive to light inside, sunlight or a flashlight? If your children are afraid of light or too sensitive to light, they may have headache very often or feel nauseous. Light sensitivity can be one of the signs and symptoms of myopia
5. Close one eye while reading or watching TV
often has a closed eye can be one of the signs and symptoms of the most common myopia. It affects the ability to coordinate both eyes in sync. Closing one eye when reading or looking at the screen can also be one of the signs and symptoms of myopia.
6. declining academic results
Children usually do not share with their parents who can not see clearly the words on the board. If you learn of the results in the school of their children was reduced for unknown reasons, you should take your eye exam. In many cases, after wearing glasses adjusted, their results are improving.
7. Eye pain when using computers
Children regularly use computers or other electronic devices often may suffer from fatigue visual. Remember that your children regularly take a break for every 20 minutes to look at something at least 60 meters away in 20 seconds. If she still complained of eyestrain she should consult a doctor. This is very likely that one of the signs and symptoms of myopia.
8. Squinting or tilting the head to look better
The teacher must take into account the early detection of children who have to strive or bow his head to look at the blackboard. If the teacher can not deploy view test, they should consider converting the child to sit in the position near the board.
V. The signs and symptoms of myopia in adults
If those who suffer from myopia want to see clearly, often they squint. In addition to the reduced vision, people with myopia are also less effective at nightfall, so at night walking on the street or drive worst cars. Here are some signs and symptoms of myopia in adults than to concern
– The need to squint to see clearly
– Have a headache due to eyestrain
to see better, people with myopia should wear glasses or contact lenses. Sometimes they have to change lenses. You need to know that the glasses do not help stop the progression of myopia that only adjusts the number of vessels. If your vision decreases further, it is often necessary to change the glass higher than the number due to increased diopter.
Having known many signs and symptoms of myopia Vkool will provide some ways to prevent myopia.
VI. How to prevent myopia
- logical learning mode depends on the level of age when learning to program accordingly. Combine modes of learning, fun and relaxation to give the eye a break.
- Continuing education for children to have a sense of hygiene in learning.
- Improving health through proper nutrition, drinking some good effects to the eye as vitamin A, vitamin D, especially during the exam.
- When should wear glasses myopia correct number in which the physician specified to avoid the increase.
- Improving learning conditions for their children by the following measures: strengthening natural lighting in classrooms, select the address for the child to sit when the natural light source shines, limited to the extent prevents the plant source of natural light shining in learning venues (such as coatings of green roofs …)
- the structure of tables and chairs for your baby correct hygiene standards, chairs table height matches the height of the child.
After reading today’s article and learn about the early signs and symptoms of myopia, as well as some basic knowledge of this eye problem, what to do now is spend time reading another article comes with the same purpose – improve eyesight with Natural Clear Vision article. It is a whole script that will help people know how to get a better view, in turn, to avoid the risks of myopia too. The tips and tricks revealed in this article are tested recommended by science and have helped several people in the world to escape this problem and get bright eyes again. Therefore, readers Vkool.com should take this opportunity and make use of the tips and techniques revealed inside this article recommended without worrying about any possible harmful side effects.
Today’s article is a meeting of the signs and symptoms of the most common myopia that has been proven science. Actually, all who are at high risk of myopia should read this article to determine whether or not they are suffering from this problem of eye health. If you think this article is useful, widely share to help other people you know. If you want to ask me anything about the contents of this article, leave your comments and evaluations below!
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