What is the difference between pseudomyopia and true myopia

The most common method is to wear farsighted glasses for 30 minutes, and if the naked eye vision is improved after the naked eye examination, it means that it is pseudomyopia. But this method is not effective for all pseudomyopia.

But we believe that this can only indicate the coexistence of truth and falsehood. Dilated refraction can verify whether it is true or false! However, you can't read for 20 days, and optometry itself is very knowledgeable and experienced, and the general doctor's optometry results are not very accurate.

Our regression mirror can make 90% of people see the effect on the spot in two or three minutes, which is a short-term effect. The greater the effect, the better the effect. Sometimes a person with true myopia will also have a good immediate effect, which can be explained theoretically, but it does not mean that he is pseudomyopia!

1. Generally, after myopia is detected in time, people who have not yet been prescribed glasses are pseudomyopia;

2. Myopia has been around for many years, and the degree is very stable in recent years, neither increasing nor decreasing, and it is likely to be completely true;

3. The rest of the cases are basically mixed myopia coexistence, mainly students, or white-collar workers with too much near-eyesight;

At present, the vast majority of students are mixed myopia, because their near eye has always been large.

The latest foreign research results show that some experts have begun to deny the false theory, believing that myopic people directly change on the eye axis, and the indication that there is no change can be recovered, which cannot be regarded as myopia. There are many doctrines, and so on!

I think what is important is what the actual situation is, and it should be verified from theory to practice, rather than to constrain practice!

In ophthalmology, pseudomyopia is a popular name, and it should really be called "accommodative myopia", and true myopia is actually axial myopia! Myopia with regulatory components is commonly known as mixed myopia!

I'm from the ophthalmology hospital, and those who don't progress are genuine. 25D spherical lens; or 2% post-matropine or 0. Because its visual acuity is myopia, it is pseudomyopia, and those with progressive vision are pseudomyopia.

This method is not very precise, and it is confirmed by visual acuity and refraction, and the other radial direction is smooth or immobile for mixed astigmatism. Poor distance vision, 1 2 times a day:

cycloplegic method, small;

One is the radial direction, and I will help you answer the question about true myopia and pseudomyopia. True nearsightedness is an organic change.

Cloud method. Each radial direction is forward or immobile; Refraction has myopia refractive as true, and the other radial immobility is emmetropia or farsightedness, which relaxes the ciliary muscle

Both true and pseudomyopia present with decreased distance vision. Apply 1% atropine eye drops, or a radial smooth.

As a result, it was determined that the visual acuity increased to pseudomyopia, and then the unaided visual acuity under the small hole microscope was checked, and then the right lens was removed. The patient's eyes are fixed on the optoscope at the same time (the side of the mirror is labeled with a No. 5 character or larger, check both eyes far away first, for 3 to 4 consecutive days.

There are three usual methods of differential diagnosis, and visual acuity can be reduced in a few weeks or 1 or 2 months: no dilation of pupils, some degree of recovery can be obtained after appropriate rest, uncorrected visual acuity can be detected immediately, and no myopia refractive is false: let the patient wear +3 in both eyes at the same time:

Those with reverse movements in all radial directions of the affected eye are true myopia. 5% tropineamide once every 5 15 minutes for a total of 6 times, inferior strokes of the word; 33cm distance isotope dynamic imaging, good near vision, illumination with slit light next to the ophthalmoscope). The doctor and the patient sit facing each other in the darkroom.

Pseudomyopia is functional, and true myopia is true myopia if visual acuity remains unchanged after pupil dilation. 0D spherical lens, which keeps the eye in a static refractive state, mostly occurs in adolescents, and the left and right eyes are both +2.

Dynamic imaging method, on. Patients wear an examination frame, cannot recover naturally, have normal near vision and have no other eye diseases that affect vision as the distinguishing object: it is to relax and regulate with cycloplegic drugs.

anterior and near-naked eye visual acuity; The left eye is then examined in the same way. This is recognized as the most reliable method of differential diagnosis, and seeing distant objects lasts for 3 minutes.

True myopia is mainly manifested as unaided distance vision abnormality, often accompanied by external heterophoria. Visual acuity is checked with a distance vision chart.

Typical symptoms. Changes in vision.

Distance vision is reduced, and near vision is generally normal.

Eye fatigue. Not as pronounced as farsighted, but more common in patients with astigmatism or anisometropia.

Abnormal ocular alignment. Due to the low demand for accommodation in myopic eyes, the aggregation effect is correspondingly weakened, and exotropia or exotropia is prone to occur.

Eye changes. The axial length of the eye increases, and usually the axial length increases by 1 mm for every 3 days increase in diopter, especially in patients with high myopia.

"Pseudomyopia" is not a real disease name, but relative to the disease of myopia, this kind of myopia is a temporary state that can be recovered, also known as accommodative myopia, functional myopia.

Pseudomyopia refers to the continuous contraction of the ciliary muscle due to various reasons, over-adjustment, the formation of accommodative spasm, so that the lens refractive power increases, the eyeball is in a state of myopia, through relaxation, rest, mydriatic intervention can return to normal vision, no need to wear glasses, and need to be distinguished from true myopia.

What is myopia? Lens problems can cause myopia? How is the lens focused?

Leaning on the ciliary muscle? What is the ciliary muscle? What's the use?

Is the eye axis too long can cause myopia? Why is the eye axis too long? What is pseudomyopia?

The difference between pseudomyopia and true myopia: pseudomyopia may be blurry when looking at distant objects, and it is clearer when looking at near objects. True myopia, also known as progressive myopia, is generally irreversible.

If true myopia occurs, be sure to wear glasses that are suitable for your eye power to avoid aggravating myopia.

Short-term myopia within 100 degrees can be restored to normal vision through health care, which is pseudomyopia, and the prescription of glasses above 100 degrees gradually deepens and will not return to the original normal degree, which is true myopia.

True myopia is true myopia caused by eye problems. Pseudomyopia may be due to physical reasons, such as transient myopia caused by excessive physical fatigue, which is pseudomyopia!

Let me give you an example, for example, if you have been reading a book for a long time, and you move your eyes to look at other things, you will feel that your vision is very blurry, but after a few minutes or more than 10 minutes, your eyes return to their previous state of myopia, which is pseudomyopia.

This is like the difference between real death and fake death, a truth!

Pseudomyopia is caused by the continuous contraction and spasm of the ciliary muscle, the thickness of the lens increases, and the vision is blurred.

Medications, physical therapy equipment, or the patient's own eye muscle strengthening exercises can relax the muscles, relieve fatigue, and restore vision to a normal state.

If pseudomyopia is not relieved in time, it will eventually lead to the enlargement of the eye axis and become true myopia.

True myopia, also known as axial myopia, is caused by congenital or acquired factors (such as not paying attention to eye hygiene), which makes the anterior and posterior diameter of the eye (i.e., the eye axis) longer than the normal average of 24mm, resulting in the focus of parallel light rays on the eyeball in front of the retina and unable to image clearly.

The so-called pseudomyopia is caused by the frequent incorrect use of the eye, the ciliary muscle continues to contract and spasm, and the lens is in a state of thickening. In this way, the parallel light from the outside enters the eye, and after the atrial refraction of the thickened lens, the focus falls in front of the retina, and it is naturally not clear to see things in the distance. During this period, there are no organic changes in the eyeball, and if you can take proper rest and **, pay attention to eye hygiene, and use the eyes reasonably, there is hope to restore normal vision.

However, if it is not corrected in time in the stage of pseudomyopia, it will develop into true myopia over time. **There are many methods of pseudomyopia, mainly relaxation and regulation, such as: the use of cycloplegic agents to dilate pupils, acupuncture, physiotherapy, improve the learning environment, pay attention to eye hygiene, and do eye exercises seriously.

True myopia requires taking necessary measures to correct myopia and actively control the development of myopia, especially for adolescents who are in the process of development, which is extremely important.

For example, if children and middle school students are short-sighted, they must be equipped with a suitable pair of eyes under strict dilated refraction, because adolescents and children have heavy learning tasks and use more eyes at close range, and a suitable pair of eyes can help alleviate visual fatigue and can also help prevent myopia from progressing.

Adults over the age of 18 can consider myopia surgery according to their needs for study, job hunting, work, aesthetics, etc., because the development of eye tissues has been perfected.

Well, pseudomyopia is a state of fatigue before the true myopia eye, and if this state is not relieved in time, the organic changes in the eye will form true myopia. To determine whether myopia is true or false, you need to do dilated refraction.

Both true and pseudomyopia manifest as decreased distance vision and good near vision. Pseudomyopia is functional, more common in adolescents, and vision can be reduced within a few weeks or 1 or 2 months, and can be restored to some extent with appropriate rest. True nearsightedness is an organic change that cannot be recovered spontaneously.

It really means that you are already short-sighted, and you can only adjust it for a long time. Leave is only caused by exertion or other reasons for a period of time, and it can be recovered by paying attention to rest.

In fact, when I went to the eye clinic to look at my eyes, the doctor told me that there was no difference between real and false at all.

Myopia is myopia.

But vision can be restored, stay away from electronic devices and use your eyes less. It is possible to restore vision slightly.

But it's impossible to return to the way it was before before myopia.

Pseudomyopia will become real if you don't pay attention to your eyes for a long time, and you really have to wear glasses. It is advisable to protect your eyes during pseudomyopia. Don't be four-eyed

True myopia is innate, and pseudomyopia is an acquired bad habit.

The simplest difference. It is to wear a convex lens to see a target five meters away, if the vision can be slowly clear, it is false and vice versa.

True myopia cannot be corrected. Pseudomyopia can be corrected to normal.

Pseudomyopia is functional, caused by accommodative spasm, with a normal axial axis. It is more common in children and adolescents who are younger, have a shorter onset time, and have low diopters. Pseudomyopia should not wear myopia glasses, which can be restored to normal with rest and appropriateness**.

True myopia is organic, determined by the elongation of the eye axis, corneal curvature, etc., and has no obvious relationship with accommodation. It is more common in adolescents who are older, have a longer onset time, and have a higher refraction. True myopia should be treated with myopic glasses to correct distance vision.

Below the following is considered true myopia. Between and is pseudomyopia.

Pseudomyopia is a state of fatigue that precedes true myopia, and if this state is not relieved in time, organic changes in the eye will form true myopia. To determine whether myopia is true or false, you need to do dilated refraction. Some parents are worried that mydriasis is harmful to their children's eyes, but in fact, the purpose of dilated pupils is to relieve eye fatigue and relax tense muscles, so that the refractive power detected is accurate.

If the naked eye vision can be achieved after pupil dilation, it is "pseudomyopia", which can relax muscles, relieve fatigue, and restore vision to a normal state in the short term. If you don't want to, as long as you often look into the distance and pay attention to rest, your vision may also be restored.

However, if the unaided visual acuity is lower than that after pupil dilation, it is "true myopia". True myopia is irreversible once formed, and it is an organic change in the eyeball. The anterior-posterior axis of the eyeball becomes longer, and external objects are imaged in front of the retina through the refractive system of the eye.

This organic change cannot shorten the eyeball and change the diopter by any method except surgery, which is why it is difficult for myopic eyes.

Pseudomyopia is functional myopia with a normal axial length, whereas true myopia has organic lesions and the axial length is usually longer. Pseudomyopia refers to the contraction of the cricoid ciliary muscle, the relaxation of the suspensory ligament of the crystal, the convex lens due to its elasticity, and the increase in curvature, enhancing the refractive power, and producing accommodative spasm; Pseudomyopia, such as blind glasses or not performing precise refraction**, long-term ciliary muscle spasm, can also lengthen the eye axis and develop true myopia. After pseudomyopia-atropine**, the refractive power of myopia disappears, which is manifested as emmetropia or hyperopia; True myopia - After atropine**, the refractive power of myopia does not decrease or decreases less.

Having the patient wear a convex lens with a higher power and an eye chart 5 meters away** can relax the spasmodic ciliary muscles and eliminate the accommodative effect. At first, the patient will experience blurred vision. After a few minutes, he will feel a little clearer.

Later, the protrusion of the lens will gradually decrease. If the lens is lowered to a flat lens without power, the visual acuity will return to normal or improve significantly compared to before the test, proving pseudomyopia.

It is generally divided into two types, commonly known as axial myopia and refractive myopia. Axial myopia is the growth of the eye axis. True myopia is often due to the elongation of the eye axis, which causes light to focus in front of the retina.

In addition, due to the increased refractive density throughout the eye, the parallel light is focused in front of the retina after passing through the eyeball. Patients with true myopia cannot use drugs**, and the degree of myopia has not changed after the use of muscle paralysis drugs;

It is caused by spasm and increased strength of the ciliary muscles of the eye. Patients with pseudomyopia can reduce the degree of regulation of the ciliary muscle by using cycloplegic agents to improve the regulation of the ciliary muscle and relax the regulation of the ciliary muscle. Therefore, patients with pseudomyopia cannot wear glasses.

In general, patients with true myopia need to wear glasses after the application of cycloplegia, depending on the final degree of true myopia. When myopia occurs, most are pseudomyopia. Pseudomyopia usually exists for 2-3 months and gradually turns into true myopia.