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Yours indeed. Corneal curvature.
It's lower, that's up to you.
Myopia. Degree.
How much, if not high, it doesn't matter much, if it is.
High myopia. The effect will be worse, and myopia is easy to regress.
If it is more than 800 degrees, you can also consider doing it.
Crystal. Surgery.
Dr. Wang Xiaoying of Shanghai ENT Hospital solemnly reminded that because the patient cannot be seen face-to-face and cannot fully understand the condition, the above suggestions are for reference only, and the specific diagnosis and treatment must be carried out in the hospital under the guidance of the doctor! )
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In general, myopia surgery can be performed, depending on your eye examination, and a professional doctor will formulate a suitable myopia surgery plan for you. Want to have femtosecond myopia surgery and don't know where to do it? It is recommended to find Huashi Ophthalmology, which is a national chain of large-scale ophthalmology hospitals, which makes people feel more at ease and more worry-free after postoperative reexamination.
The normal range of corneal curvature is about 41-43 days, and the common values are divided into the following conditions
1. Comparison standard range: the curvature at 41-43d indicates that it is relatively normal and belongs to the curvature value of the comparative standard;
2. Higher range: The curvature value of 44d is a bit high, and the curvature value above 45-46d is very high. , which is usually morbidly elevated, should be closely followed up to rule out the possibility of keratoconus, especially if the underlying irregularity and curvature value is particularly high, and special vigilance should be taken for keratoconus;
3. Flatter range: curvature <41d belongs to the relatively flat curvature, the curvature corresponds to the larger the eyeball, the flatter the corneal eyeball, the smaller the curvature of the eyeball, the steeper the curvature. The curvature of the eyeball is relatively flat and can be reached, and very few can reach 37d, 38d.
In the case of the same visual acuity, the flatter the cornea, the longer the eye axis, so some patients have a long eye axis, but there is no myopia, indicating that the curvature is relatively flat. Want to have myopia surgery for fear of sequelae? That's because you didn't choose the right eye hospital and doctor.
It is recommended to choose Huashi Ophthalmology, which has experts from public hospitals, advanced equipment, cost-effective surgery, and one-to-one VIP services, so that you have no worries.
If you want to do myopia surgery, you don't know where to go, it is better to find Huashi Ophthalmology, which is an ophthalmology specialized hospital, and the doctors currently sitting in the clinic are all in-service professors of public tertiary ophthalmology, which is a large chain of ophthalmology hospitals, covering more than 50 cities across the country.
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Myopia is divided into curvature myopia and axial myopia, after the age of 18, the normal eye axis is about 24mm, the eye axis is one millimeter long, the myopia is 300 degrees, the eye axis is one millimeter shorter, the hyperopia is 300 degrees, the normal corneal refractive power is one d, and the curvature is 1 d, which is 100 degrees of myopia.
Myopia is caused by the refractive power of the cornea and the lens being too strong, or the axial axis is too extended, resulting in the refraction of external light through the cornea and the lens, and the focus formed is not focused on the retina, but in front of the retina, causing the projection on the retina to be blurred and causing vision loss.
Myopia caused by excessive refractive power of the cornea or lens is called refractive myopia, and myopia caused by excessive axial lengthening of the eye is called axial myopia. The refractive index of the cornea is expressed by the curvature of the cornea, which is 43 days. For every day that the corneal curvature increases, the degree of refractive myopia increases by 100 degrees.
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Answer corneal curvature: The greater the corneal curvature when measuring corneal curvature, the greater the possibility that the patient will develop myopia later. The large curvature of the cornea refers to the large curvature of the cornea, and the large curvature has a strong ability to tortuous parallel rays, forming a focal length and a long distance from the retina.
If it is located in front of the retina and farther away from the retina, the degree of myopia is greater.
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The conversion of corneal curvature and radius of curvature is involved here: corneal curvature (d) = radius of corneal curvature (mm).
The mean corneal curvature of the left eye is, and the maximum corneal curvature is;
The mean corneal curvature of the right eye is, and the maximum corneal curvature is.
You have a high corneal curvature and a large corneal astigmatism.
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The upper left is the computerized optometry, the lower left is the intraocular pressure measurement, and the corneal flexion rate is partially seen, which is a moderate myopia test result.
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1. What is the normal range of corneal curvature?
2. The normal range of corneal curvature radius.
3. Corneal curvature range of normal people.
4. The normal range of corneal curvature value.
1.Under normal circumstances, the radius of curvature of the cornea is generally about 8mm on the anterior surface and about 8mm on the posterior surface of the segment.
2.The cornea is an important part of the eye and a part of the refractive medium, and is a very regular arc-shaped structure.
3.The curvature of the cornea can be divided into two finger grip verniers: the radius of corneal curvature and the refractive power of the cornea.
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If the curvature of the cornea is high, the thinning of the cornea after laser may cause a round and small jujube cone, so it is not suitable for laser. Lens ICL implantation can be considered, and the effect is also good and reversible. The above hospital is a specialized hospital for myopia surgery.
In fact, the myopic friend said that the cornea is high, he is the curvature of a cornea, and the curvature of the cornea is divided into the curvature of the anterior surface and the curvature of the surface after the removal of the belt, this is what we want to check, if after the examination, the curvature of your cornea is within a reasonable range, then it is a cautious ant who can do surgery, if you say that the curvature of your cornea, it is possible to develop into keratoconus, In this case, we should make a comprehensive assessment, according to the thickness of your cornea, the curvature of the cornea, and the degree of your myopia, to determine whether you can do surgery.
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In fact, myopic friends said that the cornea is high, he is a corneal curvature, and the curvature of the cornea is divided into anterior surface curvature and posterior surface curvature, this is what we want to check, if after examination, your corneal curvature is within a reasonable range, then you can do surgery, if you say that your corneal curvature may develop into keratoconusIn this case, we should make a comprehensive assessment, according to the thickness of your cornea, the curvature of the cornea, and the degree of your myopia, to determine whether you can do surgery.
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If the corneal curvature is high, you can do conservative ** first, and you can also do myopia surgery later.
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Even corneal ulcers form, and the cornea will gradually return to its original corneal morphology, however.
From the perspective of eyesight alone, you can, but pilots are extremely demanding, not good eyesight, you have to be very good in all aspects.
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