What are the causes of esotropia, and what causes strabismus?

How to squint the eye, then it depends on the type of strabismus, the type of strabismus is different, so the method is also different.

Depending on the type of strabismus, it can generally be divided into surgical and non-surgical methods.

1) The surgical method is to adjust the strength of the external eye muscle and the position of the attachment point by surgical means, so that the eye position tends to be normal.

Congenital esotropia (cross-eyed) and upper and lower strabismus usually require surgery**, and non-accommodative and oblique strabismus usually need to be corrected by surgery.

2) Non-surgical method: Not all strabismus requires surgery**, if it is accommodative esotropia, it can be corrected as long as appropriate farsighted glasses or bifocals are worn. If there is also a refractive abnormality of medium to high intensity, it is often necessary to wear glasses to correct it, and axial correction training can be used to help restore monovision and increase the fusion ability of both eyes.

If amblyopia is also present, amblyopia training is also indispensable**.

Strabismus caused by refractive error is recommended to take medication in time to correct the refractive error. It is recommended to take two sachets of Leyan Vision Nutrients every day, and if you insist on taking it for a period of time, the refractive error will gradually be corrected, and the strabismus will gradually improve or even recover.

The main causes of strabismus are as follows:

1. Congenital anomaly: Strabismus that occurs within 6 months of birth is called congenital strabismus, which is caused by abnormal anatomical position of extraocular muscles, abnormal development, or nerve paralysis innervating muscles. In addition, strabismus is also hereditary.

2. Imperfect development of visual function: Before the age of 5, the monovision function of both eyes is not yet mature, and the extraocular muscles cannot be well coordinated, which can easily lead to strabismus.

3. Immature refractive system: children are mostly farsighted and have strong accommodative power, and excessive adjustment will inevitably cause excessive convergence of the two eyes, which can easily cause esotropia.

4. Disorder of central control of eye movement: too strong or insufficient abduction of the eyeball will produce esotropia; Conversely, if the abduction is too strong and the collection is insufficient, an exoskew will occur.

5. Other triggers: such as fever, cold, surgical trauma, shock, emotional tension or mental pressure, can also cause strabismus.

Strabismus is caused by inflammation of inflammatory pseudotumors that cause hypertrophy of the medial aspect of the superior rectus muscle and adhesion to the superior oblique muscle, resulting in excessive upward and limited downward rotation of the right eye. Inflammation may lead to lesions of the extraocular muscles and their surrounding tissues, adhesions, fibrosis, hypertrophy, atrophy, degeneration, etc.

The main role of the medial rectus muscle is inward rotation and there is no secondary effect. The main role of the lateral rectus muscle is outward transfer, and there is no secondary effect. The main role of the superior rectus muscle is upward rotation, and the secondary role is internal rotation and internal rotation.

The main role of the inferior rectus muscle is downward rotation, and the secondary role is external rotation and internal rotation. The main role of the superior oblique muscle is internal rotation, and the secondary role is downward rotation and external rotation. The main role of the inferior oblique muscle is foreign, and the secondary role is upward and external rotation.