Abstract: high myopia refers to ametropia with myopia greater than 600 degrees, accompanied by degenerative diseases such as axial elongation, fundus retina and choroidal atrophy. High myopia is not only unable to see clearly, but also the most important thing is that the shape of the eyeball may change, that is, the anterior and posterior diameter may be lengthened.
nowadays, the probability of myopia is higher and higher. Myopia has become a problem that can not be ignored in our society. Most patients with low myopia pay little attention to high myopia. Ophthalmologists said that most patients will choose optometry to correct their vision, but the fact is that the vision of many patients still decreases day by day. Most of them eventually develop into high myopia with age, and even cause a series of blinding eye diseases.
high myopia refers to ametropia with myopia greater than 600 degrees and accompanied by degenerative diseases such as axial elongation, fundus retina and choroid atrophy. High myopia is not only unable to see clearly, but also the most important thing is that the shape of the eyeball may change, that is, the anterior and posterior diameter may be lengthened. With the change of eye shape, the retina and choroid at the back of the eye will be pulled, resulting in retinal choroidal degeneration. Therefore, high myopia may develop into “pathological myopia”. If there is a hole, it may lead to retinal detachment, and the consequence is blindness.
adverse symptoms of high myopia
1. Fundus changes
arc spots can be seen next to the optic papilla, the omentum is highly leopard shaped, omental atrophy spots and macular degeneration can be seen. Irregular, isolated or fused white atrophic spots can occur, and sometimes bleeding can be seen. In addition, degenerative lesions are occasionally seen near the macula, which is characterized by a black annular area, slightly smaller than the optic disc, clear boundary, and small circular bleeding can be seen at the edge, which is called foster Fuchs macula. Generally, macular degeneration can be clearly found when patients go for examination.
2. Rapid development
high myopia often develops rapidly in childhood, and there will be a development peak in adolescence (15 ~ 20 years old); Different from simple myopia, some high myopia do not stop the development of myopia even when they reach adulthood, so some people call it progressive myopia. High myopia has been developing continuously since the early stage of myopia, so the probability of eventually deteriorating into blinding eye disease is very large.
3. The dark shadow
in front of us causes vitreous degeneration, liquefaction, posterior vitreous detachment, etc. there are turbidity and floating objects in the vitreous, and the patient can see flying mosquitoes, sparks and flashes.
in high myopia, the anterior and posterior diameter of the eyeball increased significantly, some formed posterior scleral staphyloma, deepened anterior chamber, ciliary muscle atrophy, and some people had obvious exophthalmos. High myopia has obvious performance characteristics in appearance. The eyeball protrudes, which can be seen at a glance, affecting the beauty of the patient’s appearance.
5. Vision loss
high myopia can cause cataract and macular hemorrhage, which can significantly reduce vision. The most serious is retinal detachment, which can lead to blindness and eyeball atrophy. Vision loss is the most intuitive response of patients with high myopia, but the inducement is extremely staggering. Cataract, macular hemorrhage, retinal detachment and so on are serious eye blindness diseases. Therefore, once the patient has decreased vision, he should see a doctor in time.