But the first step must be glasses, as long as it is higher than the naked eye, it must be glasses.

3 according to the inspection data of glasses. The following are the principles of amblyopia glasses.

In optometry, the correction of oblique amblyopia glasses is one of the intractable diseases. If you wear it accurately and correctly, you can gradually restore normal visual function and achieve the goal of completely correcting amblyopia. However, strabismus and amblyopia have extremely high technical requirements for glasses. Measurement of diopter, pupil distance and pupil height of glasses, processing and molding of glasses, etc. They are all scientifically and reasonably tailored. Therefore, strabismus and amblyopia should choose professional glasses in order to correctly "match" glasses and "wear" glasses. Oblique amblyopia glasses mainly have the following three methods:

Fully corrected glasses: Common children not only have amblyopia, but also have same-sex esotropia and moderate hyperopia, all of which are common clinical types. Because esotropia is caused by children's over-adjustment, hyperopia should be completely corrected. This can not only give the sensory cells a normal and clear visual impression and inhibition, but also gradually improve their vision; It can also improve the state of excessive accommodation and convergence after hyperopia correction, control the development of esotropia and gradually correct esotropia. Therefore, as long as patients insist on wearing complete corrective glasses, they will generally achieve good results, so good cooperation between patients and parents is very important. Clinical practice has proved that children's eyesight will be gradually improved by insisting on glasses and cooperating with necessary amblyopia training. In recent years, the author found that the younger the child, the earlier the treatment and the better the effect.

Best corrected vision glasses method: This method is suitable for amblyopic children without eye deviation. Reducing the diopter of hyperopia can achieve the best vision, but other degrees can't. Therefore, when prescribing glasses, the diopter with the best vision should be adopted. Children's eyesight can be consolidated and improved. If the correction effect after glasses is satisfactory, we must insist on glasses to consolidate our vision. Because corrected vision is no longer amblyopia, amblyopia training is not needed, and vision can still be further improved. In addition, optometry should be patient and meticulous, and the hyperopia degree should not be lowered too low to prevent the occurrence of esotropia due to compensatory adjustment and extremely enhanced convergence function. Therefore, it is very important to check the children regularly and observe the correction of vision and eye position.

Low correction optician method: this method is suitable for children with hyperopia with exotropia and amblyopia, and the best vision is consolidated with the lowest degree of optician correction. Children are still farsighted after wearing glasses. When working at close range, it is necessary to increase the adjustment and cohesion, promote the contraction of the medial rectus muscle and the inversion of the eyeball, thus correcting the exotropia tendency and maintaining the normal eye position.

How to match glasses after strabismus correction?

After strabismus correction, the eye position is correct, and the original ametropia should be re-optometred. If the eye position is well corrected, glasses with the lowest lens power should be equipped to obtain the best vision; If patients with esotropia are slightly overcorrected after operation, they can be given glasses according to the diopter of hyperopia; If insufficient correction is found after surgery, it can be overcorrected. If it cannot be corrected, consider reoperation.

After strabismus correction, some patients have normal retinas, but due to incomplete fusion function or narrow fusion range, they still can't return to normal fixation. People with small oblique viewing angle can use a prism to image the gaze target in the fovea of both eyes to stimulate the formation of monocular vision.

Within 2 months after correction, the patient developed another strabismus accompanied by strabismus, and the patient felt that diplopia was unbearable. Giving thin film prism is beneficial to temporarily relieve the diplopia symptoms of patients.

Why do amblyopia patients often optometry glasses?

In the treatment of amblyopia, another question that parents often ask is: Why do you need to re-optometry regularly and change glasses frequently, while adults can wear a pair of glasses for many years? What is the reason?

This is because children's eyeballs are in the development stage, which makes the axial line grow continuously. Roughly speaking, the hyperopia of glasses is about 3.0D less with the increase of the axial length of1mm.. Children's axial length at birth is 14.5~ 17.0 mm, showing a state of high hyperopia, and generally it will not reach the adult level until 6~8 years old, reaching 24 mm Therefore, the diopter of children before 6~8 years old is constantly changing, and children with amblyopia need to re-optometry and replace the glasses they wear regularly.

In addition, the pupil distance is also increasing. If the glasses are not replaced in time, the eyes can't look directly at the optical center of the lens, and the prism effect will appear. Therefore, it is necessary not only to re-optometry, but also to re-measure the pupillary distance and re-match the glasses.

The time for re-optometry is generally half a year or one year, and should not exceed one year. After re-fitting glasses, the vision improved and the eye position tended to be normal. Changing glasses is beneficial to improve the curative effect of amblyopia and shorten the course of treatment.

Several common mistakes of "Pei" mirror for oblique amblyopia

A pair of glasses suitable for children will make strabismus and amblyopia children achieve twice the result with half the effort in the correction process. However, in life, some parents mistakenly instruct their children to wear glasses, which delays the best time for children to correct their eyesight. Here are some common mistakes:

One of the mistakes: let the child delay wearing glasses.

Some parents are reluctant to let their children wear glasses too early after detecting that their children have oblique amblyopia. However, strabismus amblyopia is a kind of visual nerve dysplasia, and the critical period of human visual nerve development is 3 ~ 5 years old, which determines that the treatment of strabismus amblyopia should be early! Theoretically speaking, 8-year-old children's vision and various visual functions can reach the adult level, but through eye chart inspection, it is often found that children over 3 years old can basically reach normal, that is to say, if children over 3 years old find ametropia that affects their vision, they should optometry and glasses correction as soon as possible, so as not to delay the best correction opportunity because of misunderstanding.

Mistake 2: Children wear glasses when picking them.

Parents mistakenly believe that children wearing glasses will affect their development, so they don't insist on wearing glasses. In fact, for children with amblyopia, we should insist on wearing glasses. Wearing glasses itself is a kind of correction, but wearing them when picking them will affect the correction effect. Some parents encourage their children to wear less or no glasses when doing training without authorization. As a result, they found that the child's vision did not improve significantly during the reexamination. After questioning, they found that this was the reason for the problem and wasted valuable opportunities for correction.

Mistake 3: After improving eyesight, I didn't change my glasses in time.

For strabismus and amblyopia caused by myopia, hyperopia and astigmatism, optometry should be accurate and glasses should be worn to correct vision. Many patients with strabismus and amblyopia caused by ametropia can see the improvement effect after wearing glasses for about half a year. The degree of strabismus and amblyopia is reduced, and the vision is obviously improved. However, at this time, some parents mistakenly understand that "glasses are just fine" or because of busy work and other reasons, they did not change their children's glasses in time, resulting in poor correction effect. Therefore, optometry should be done every six months after glasses are fitted, and the degree of glasses should be adjusted in time according to the change of refractive power.

Mistake 4: Stop wearing glasses and training if your vision is normal.

This is also one of the most common mistakes parents make. The standard of complete correction of amblyopia is binocular vision above 0.9, which has good binocular vision and stereoscopic vision function, and there is no visual degradation after 3 years of follow-up. You need to have the above three points at the same time to be completely corrected for amblyopia. Many parents, even some non-professional optometrists and optometrists, stop optician and training prematurely after their children's vision has improved to normal level, which can be described as failure, leading to decreased vision, strabismus and amblyopia recurrence.

Oblique amblyopia is a developmental visual disorder. Parents should fully understand that the correction process is slow and the improvement of vision is gradual. We should not rush for success, but have patience and perseverance.