What is the so called pseudomyopia? How should I tell?

Pseudomyopia is a myopia that allows the tense ciliary muscles to relax and return the lens to its normal thickness and size after physical or medical intervention. An eye drop test can be done, and if there is a change in unaided visual acuity before and after the drops, it is pseudomyopia.

You can go to the hospital to do a vision refraction to know if you have myopia, pseudomyopia is a kind of accommodative myopia, usually mainly to see too many electronic devices, with eye fatigue caused by ciliary muscle spasm, usually you can rest more.

Pseudomyopia is a phenomenon of vision loss caused by poor rest or long-term inattention to the eyes. Pseudomyopia and true myopia need to be examined for mydriasis before they can be confirmed. If the rate of dilation is normal, then it is pseudomyopia, and if the vision after dilation is still decreasing, then it is true myopia.

The so-called pseudomyopia, in fact, is a name for amblyopia, amblyopia is different from myopia and farsightedness, but compared to the ordinary, the visibility of the eyes is not so high, you can generally go to the optical store, or the hospital ophthalmology examination of their own power to judge.

Pseudomyopia is similar to myopia but not true myopia. It can recover well on its own, pseudomyopia is mainly to see the distance blurry, see the near is normal, when the eyes are overworked, this phenomenon will appear, and it will return to normal after rest.

What is pseudomyopia?

Pseudomyopia is functional, mainly due to excessive use of the eye, which causes the ciliary muscle to contract and spasm, the lens thickness increases, and the vision is blurred. Usually there is unstable vision, but after a period of rest, it will generally get better, but if it is not relieved in time, it may really form true myopia.

Medications, acupuncture, ear acupuncture and physiotherapy equipment, or through the patient's own eye muscle strengthening exercises can relax the muscles and relieve fatigueAble to restore vision to a normal state

How to distinguish between true and false myopia?

1. The most effective method is to do dilated pupil refraction, if you do not dilate pupil refraction, the power checked out is the "true + false" mixed data, which is not accurate. （Dilated refraction is not bad for children

Simple to tell

Hang an eye chart at a distance of 5 meters, do a vision test, and then wear 300-degree farsighted glasses or reading glasses, look into the distance, a cloud-like scene will slowly appear in front of you, take off your glasses after about 30 minutes, and then check your vision with an eye chart, if your vision is enhanced, it may be pseudomyopia, if your vision is still or your vision is reduced, there is a possibility of true myopia. This method is repeated once a day for three consecutive days, and if there is still no improvement in vision, it can be determined that true myopia is true.

Cloud method

It is not commonly used in general hospitals. When using the cloud method, the doctor will first ask the patient to wear + spherical glasses, see distant objects for 3 minutes, then remove the glasses, and then do a naked-eye vision test. Increased visual acuity is pseudomyopia, otherwise true myopia.

Ciliary paralysis method

The cycloplegic method is a more commonly used identification method in hospitals. First, use cycloplegic drugs to relax and adjust the ciliary muscles, so that the eye is in a static refractive state, and then do an eye examination and refraction. If the visual acuity does not change after mydriasis, it is true myopia, and if the visual acuity increases after mydriasis, it is pseudomyopia; If there is no myopia in refraction, the diopter is pseudomyopia, and if there is myopia, the diopter is true myopia.

What about pseudomyopia?

1. Look less at electronic products, don't rub your eyes with dirty hands, don't overuse your eyes, and let your eyes rest more. If you find an eye abnormality, you can see a doctor as soon as possible.

2. Drugs, acupuncture, ear acupuncture and physiotherapy equipment, or through the patient's own strengthening of eye muscle exercises can relax muscles, relieve fatigue, and restore vision to a normal state.

3. Distant view method: 1 2 hours after reading or reading and writing, overlooking the natural scenery, so that the ciliary muscle can adjust and relax, do eye exercises, and improve the learning and reading environment: pay attention to natural light and ensure sufficient indoor lighting when writing homework at night, more outdoor sports, and more distant scenery and green plants.

4. Eat more foods containing more zinc such as soybeans, almonds, seaweed, kelp, mutton, yellow croaker, milk powder, tea, meat, beef, and liver.

Wash and peel the carrots and squeeze them into juice, taking 200 ml a day, there will be improvement.

In the case of true myopia, it usually lasts for a long time, and you can't see clearly at the top of the eye chart when you look at it, but if it is pseudomyopia, your vision is still relatively clear at a certain time.

It should be decided based on the degree of clarity of the view, the optic nerve is damaged in true myopia, but the optic nerve is not damaged in pseudomyopia.

You can go directly to the hospital for examination and optometry, and you can determine whether it is true myopia or pseudomyopia.

What is the difference between pseudomyopia and true myopia? The most important thing is dilated refraction, if myopia still exists after dilated refraction, it is true myopia; If there is no prescription after dilated refraction, it is pseudomyopia. Some children use their eyes excessively when they are young, so that the ciliary muscle is in a spasmodic state, and there are manifestations of myopia, which can be slowly recovered after resting, which is pseudomyopia, which is reversible and can be recovered.

For true myopia, it cannot be recovered after rest, which requires glasses.

The determination of the truth or falsity of myopia requires scientific medical refraction to be finally obtained, and the focus on measuring the accurate refractive power is pupil dilation. If it is pseudomyopia, after the dilated pupils, the degree will no longer exist, if there is still a degree, then the degree measured after the dilated pupils is the child's real myopia degree.

You don't need to look at ophthalmology, teach you to understand the difference between true myopia and false myopia The lens in the eye will focus the image of distant objects on the retina, while myopia will cause the eye axis to become longer and the images converge in front of the retina, resulting in blurred vision. Among them, pseudomyopia is considered to be functional myopia. At this point, the shape of the eyeball does not change much.

As long as you start to pay attention to the habit of using your eyes, you can recover naturally after proper rest. True myopia is a qualitative change, at this time, the eyeball has been deformed, and it cannot only rely on its own adjustment to restore vision, but can only train the eyeball through external adjustment to restore vision.

The stability of vision is different, pseudomyopia, also known as accommodative myopia, is blurred myopia caused by excessive adjustment of lens refraction when people use the eyes for a long time. When the adjustment abnormality is over, the visual acuity will return to normal, so the vision of pseudomyopia is unstable. The real myopia is the adjustment of the lifting of the eyeball, and the refractive system of the human eye is in a static state, resulting in refractive error, so as long as you wear the right glasses, carry out the corresponding **, and usually maintain good habits with the eyes, the prescription will not rise.

In general, because most of the myopia in adolescents is caused by near proximity and eye fatigue, the myopia degree of pseudomyopia natural refraction (non-dilated pupils) is usually below 200 degrees. If the prescription is too high, it is likely to be really myopia. The phenomenon of false myopia is a sign of the occurrence of true myopia, and if we do not pay attention to eye hygiene and health care methods in time, it will soon develop into true myopia.

Only by understanding the difference between true myopia and false myopia can you take good care of the situation and protect your eyes. So how do you distinguish your false myopia?

It can be judged by the degree of myopia, by examples, and by the state of the eyes, so that true or false myopia can be judged.

You can go to the relevant place for examination, you can also go to check the intraocular pressure and the length of the eye axis, you can do an eye test, and you can also do a related dilated eye refraction examination.

If there is no prescription, this is false myopia, and a dilated eye refraction examination is required, and myopia can be determined according to this examination.

School-age children or adolescents have long-term inappropriate reading, writing or insufficient lighting and other factors, so that the ciliary muscle is often in a state of contraction, and the convex lens is not easy to relax, at this time, the distant parallel light enters the eye, after the convex lens is strongly reflexed, its focus will no longer fall on the retina, but fall in front of the retina, and the vision is blurred, which is called pseudomyopia in medicine.

In summary, the use of the eyes is unhygienic and excessive, which leads to tension and spasm of the ciliary muscles, which causes the light to focus in front of the retina, resulting in refractive error and loss of distance vision. However, this decline can be recovered after rest or **, that is, this myopia eye is reversible, so it is called pseudomyopia, also known as accommodative myopia.

Pseudomyopia is characterized by lower distance visual acuity than near visual acuity; After rest or dilated refraction, the refractive power may disappear or decrease; When myopia can be corrected, stopped, and near eye work resumed, vision will decline again. Dilated refraction can distinguish between true myopia and pseudomyopia.

Because the anterior and posterior diameter of the eyeball has not been lengthened, the structure of the eyeball has not changed, but only the physiological function has changed, so it is generally not necessary to wear glasses. With promptly** and attention to protection, the ciliary muscles are relaxed and vision can return to normal. If it is not paid attention to in the pseudomyopia stage and continues to develop, the anterior and posterior axis of the eyeball becomes longer, and the structure of the eyeball changes, which becomes true myopia.

Pseudomyopia may occur in the original emmetropic eye.

People with farsightedness or even myopia often mistake emmetropia or even farsightedness for myopia, so that the original myopic person shows a higher degree of myopia.

Pseudomyopia is relieved or eliminated by resting or applying cycloplegic agents, such as 1 atropine eye drops or ointment, or foggy vision** to relax or paralyze the ciliary muscles. If not properly treated, long-term use of near vision can cause the anterior and posterior axial axis of the eye to lengthen, resulting in true axial myopia. Therefore, in the stage of pseudomyopia, preventive measures should be strengthened, strict attention should be paid to eye hygiene, appropriately reduce reading and close work to eliminate more accommodation, if not relieved, the application of cycloplegic agent or foggy vision method to relieve its regulatory spasm, stop reading for a short time, and can be used for eye massage, distant view, outdoor activities, etc., do not rush to wear myopia glasses without dilating the pupil refraction, so as to force more adjustment, the formation of a very deep degree of myopia.

In conclusion, pseudomyopia is characterized by lower distance visual acuity than near visual acuity; After rest or dilated refraction, the refractive power may disappear or decrease; When myopia can be corrected, stopped, and near eye work resumed, vision will decline again. Dilated refraction can distinguish between true and false myopia.

Resources. Bibliography: References.

The concept of "pseudomyopia" was first used for farsightedness. Because the farsighted eye is not clear and the near vision is more blurred, it is necessary to use adjustment to see far and near, resulting in excessive tension and even spasm of adjustment, and some myopia symptoms are manifested at this time, such as: blurred vision, slightly clear vision, squinting; Small pupil refraction has a degree of myopia.

Once the accommodation is relaxed (eg, with cycloplegics), the eye is farsighted. Therefore, it is considered "fake". "Pseudomyopia" is a colloquial term that refracts the refractive state of the eye due to excessive tension or spasm to manifest itself as a temporary myopic state.

Pseudomyopic eye" - after ** can restore normal myopic eye, its essence is not myopia, it is emmetropia or farsightedness, generally through appropriate rest or dilated pupil examination can be determined, no need for **. "True myopia" - myopia detected by medical optometry. Diagnosing myopia in adolescents requires a prerequisite for relaxation (use of cycloplegic agents).

Therefore, there is only the diagnosis of "myopia" or "emmetropia, farsightedness, astigmatism", and there is no "fake, true" myopia.

Long-term close eye use, excessive use of accommodation, myopia caused by adjustment tension or adjustment spasm, and myopia disappearing after rest or use of cycloplegic agents, this kind of myopia is pseudomyopia.

Pseudomyopia, also known as functional myopia, is a functional change in which the symptoms are similar to myopia, but there is no organic myopia change in the eye. Pseudomyopia mostly occurs in adolescents, due to excessive use of the eyes at close range, the ciliary muscle that regulates the eyeball continues to contract, and it cannot be relaxed for a long time, resulting in the spasm of the ciliary muscle and the state of increased lens curvature, which can only see the near clearly and cannot see the far clearly, causing transient vision loss.

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, which is more likely to occur in adolescents and children, as well as those who use the eyes for a long time, through relaxation, rest, dilation, visual training and other active interventions can be restored to normal, no need to wear glasses, continuous development can be "true" myopia, need to go to a regular hospital for hospital optometry and true myopia identification.

Pseudomyopia is a continuous contraction and spasm of the ciliary muscle, an increase in the thickness of the lens, and blurred vision due to excessive eye use and lack of nutrition. Pseudomyopia nerve rest conditioning relieves fatigue, relaxes muscles, and returns vision to normal.

It is manifested as symptoms of eye swelling, dizziness, blurred vision, and other symptoms of visual fatigue.