Do you know “pathological myopia”? What harm does myopia surgery have?

Abstract: there are obvious genetic factors in the pathogenesis of pathological myopia. In addition, biomechanical factors are also another important factor in the etiology of high myopia. Long time reading and fine eyesight work are one of the important causes of simple myopia, and can also deepen the diopter of pathological myopia., Do you know “pathological myopia”? Myopia more than 600 degrees is called high myopia. High myopia can be divided into two categories according to whether there are eye changes. One is simple high myopia, which has a high degree of myopia and can be stable in a certain period of time without serious eye changes; The other is pathological myopia. Doctors said that pathological myopia is an eye disease characterized by progressive deepening of diopter, continuous growth of eye axis, and visual dysfunction caused by progressive damage to eye content and retinal choroid tissue. It is one of the common eye diseases in China, with a prevalence of about 1% – 2%. At the same time, in recent years, laser myopia surgery not only solves the problem of wearing glasses for high myopia to a certain extent, but also meets the needs of people engaged in special occupations to work and go to school, and is welcomed by myopia patients. However, there are still many patients who question the harm of laser myopia surgery. What harm does laser myopia surgery have?, What is the etiology of pathological myopia?, There are obvious genetic factors in the pathogenesis of pathological myopia. In addition, biomechanical factors are also another important factor in the etiology of high myopia. Long time reading and fine eyesight work are one of the important causes of simple myopia, and can also deepen the diopter of pathological myopia., What are the symptoms of pathological myopia?, 1. Visual dysfunction: naked eye vision is seriously reduced, mostly below 0.1, and some have only digital or manual vision. The best corrected visual acuity decreases. Even wearing thick lenses or contact lenses can not improve the visual acuity to normal. Visual field damage, contrast sensitivity decline, near point forward movement, stereo vision loss, etc.,   2、 Eye axis (the length of the anterior and posterior diameter of the eyeball) lengthens: the eyeball becomes larger. 3. The degree of myopia is unstable: in general, the degree of myopia will not deepen after a certain age, but the degree of myopia in pathological myopia will always deepen, even for a lifetime Are you? Myopia more than 600 degrees is called high myopia. High myopia can be divided into two categories according to whether there are eye changes. One is simple high myopia, which has a high degree of myopia and can be stable in a certain period of time without serious eye changes; The other is pathological myopia. Doctors said that pathological myopia is an eye disease characterized by progressive deepening of diopter, continuous growth of eye axis, and visual dysfunction caused by progressive damage to eye content and retinal choroid tissue. It is one of the common eye diseases in China, with a prevalence of about 1% – 2%. At the same time, in recent years, laser myopia surgery not only solves the problem of wearing glasses for high myopia to a certain extent, but also meets the needs of people engaged in special occupations to work and go to school, and is welcomed by myopia patients. However, many patients still question the harm of laser myopia surgery, so what harm does laser myopia surgery have?

what is the etiology of pathological myopia?

pathological myopia has obvious genetic factors. In addition, biomechanical factors are also another important factor in the etiology of high myopia. Long time reading and fine eyesight work are one of the important causes of simple myopia, and can also deepen the diopter of pathological myopia.

what are the symptoms of pathological myopia?

1. Visual dysfunction: the naked eye vision is seriously reduced, mostly below 0.1, and some have only digital or manual vision. The best corrected visual acuity decreases. Even wearing thick lenses or contact lenses can not improve the visual acuity to normal. Visual field damage, decreased contrast sensitivity, near point forward movement, loss of stereo vision, etc.

  2、 Lengthening of the ocular axis (the length of the anterior posterior diameter of the eyeball): the eyeball becomes larger.

3. The degree of myopia is unstable: in general, the degree of myopia will not deepen after a certain age, but the degree of myopia in pathological myopia will always deepen, even for a lifetime.

4. Flying mosquito disease: caused by vitreous opacity.

5. Visual fatigue: unable to see things for a long time, often accompanied by eye pain, headache, nausea, insomnia, etc. some patients can’t even wear glasses for correction.

three common hazards of laser myopia surgery:

doctors introduce that any operation is risky. Of course, laser myopia surgery is no exception. Generally, the harm of myopia laser surgery is mainly reflected in the following three aspects:

1. Improper surgical care will cause infection. “Infection” is one of the hazards of myopia surgery. However, this can be avoided. Whether it can be avoided depends on whether the hospital operates in strict accordance with the standard process of surgery.

2. Myopia surgery did not achieve the expected effect. The hazards of myopia surgery include residual myopia, anisometropia, astigmatism or over correction. Some unprofessional eye hospitals may make such mistakes when operating on myopia patients, because these hospitals do not conduct personalized analysis on patients, which leads to the occurrence of harm.

3. The emergence of dry eye. Dry eye refers to the instability of the tear film caused by the dryness or insufficient components of lipids, water samples and mucins in the tear film. Excimer laser myopia surgery is also the main cause of dry eye. Because myopia surgery is performed on the corneal surface, some nerves have not been repaired well at the initial stage of excimer laser correction, which has a certain impact on the tear film, so there will be dry eyes. This situation will not last long and can be improved after postoperative recovery.