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Astigmatism can cause vision loss, blurred vision, visual fatigue and other conditions, and naturally such a situation for a long time will also cause the eyes to look dull.
Astigmatism is a refractive abnormality of the eye that is related to the curvature of the cornea. Some people have a curved cornea in one angle and flatter in others. The cause of astigmatism is that the refraction rate of each meridian of the cornea is inconsistent due to the uneven thickness of the cornea or the uneven curvature of the cornea, so that the light rays passing through these meridians cannot be concentrated at the same focal point, and the light rays cannot be accurately focused on the retina to form a clear image, which is called astigmatism.
Astigmatism simply means that the eye is not well developed, and there is a phenomenon of unevenness. And now there are more and more people with astigmatism, and eye astigmatism is directly related to the serious lack of vision nutrients, as well as bad eye habits.
Eye astigmatism first needs to be supplemented with vision nutrients in time, it is recommended to take Joy Vision Nutrients, twice a day, one pack each time, take it with warm water, insist on taking it for a period of time, and astigmatism will gradually be controlled or improved.
The other is to develop good eye habits.
1. Regular eye examination 1 2 times a year. Instruct young children to practice good hygiene and not to contact their eyes with their hands or chemicals. When reading, there should be plenty of light, preferably from the left rear; Correct posture and a distance between 30 cm and 40 cm.
2. When choosing reading materials, the font should be clear and not too small.
3. Watching TV must be 5 7 times the diagonal of the TV picture. Read a book for no more than one hour in a row. If you need glasses, you should be examined by a doctor and then dispensed with glasses.
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The clinical manifestations of astigmatism are: blurred vision, seeming double vision; Eye fatigue, eye swelling and pain, headache, tearing, nausea, vomiting; In terms of visual acuity, people with low astigmatism, distance and near vision are generally normal, but they are prone to eye fatigue when working with fine eyesight; People with high astigmatism often have symptoms such as blurred vision or blurred vision.
4.The optic disc of the fundus is vertically oval with blurred edges, and the fundus cannot be seen clearly with glasses;
5.Keratometric measurements and Platido disc examination may reveal inconsistent corneal curvature.
Suggestions: If there is astigmatism after examination, it is recommended to wear appropriate astigmatism glasses in time.
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Regular astigmatism: 1. Blurred vision: seeing things is in a divergent state, not concentrating light, looking at lights with phantoms, looking at objects with double vision or double vision; 2. Visual fatigue: After reading or reading for a long time, the eyes will be sore, and even cause headache, dizziness, nausea and other symptoms.
Irregular astigmatism: The cornea is not round and has local pits. The main causes of irregular astigmatism are trauma, keratoconus, poor visual quality, distortion and phantom vision.
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The main manifestation is confusion, a small number of people have double vision, and in severe cases, there is a situation where things are deformed, but the vast majority of people only feel blurry. Whether such blurring is caused by myopia or astigmatism is not easy to judge, and it can only be distinguished after accurate refraction. Many people who are not optometry majors, or who are not deeply involved in optometry, are not easy to distinguish.
Let's put it this way, zonal dispersion is a relatively difficult technique in optometry.
The harm is just not clear, nothing else. It is basically the same as myopia and other hazards.
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Astigmatism lenses are cylindrical lenses, and astigmatism has affected vision, so it is natural to go to the hospital to get suitable glasses.
Common manifestations of astigmatism in the eye are:
1. The blurred image on the retina needs to be constantly finely adjusted, and the vision is distorted, so astigmatism, especially for farsighted astigmatism, is prone to visual fatigue. Presents with eye pain, tearing, headache, especially in the forehead, double vision, and short-range work that cannot be sustained.
2. Patients with highly asymmetrical astigmatism in both eyes, in order to see more clearly, often adopt a tilted head position to cause strabismus, which can be recovered after astigmatism correction. Patients sometimes move objects closer to the same place as a nearsighted person in order to obtain a larger image of the retina.
3. People with high astigmatism often squint when looking at distant or near targets, so as to achieve pinholes and fissures to improve their vision. Seeing through pinholes or fissures can reduce the impact of astigmatism on vision.
Astigmatism refers to when the eye is adjusted to rest, after the parallel light rays are refracted by the eye, due to the different refractive power of each meridian of the refractive system, causing different degrees of convergence, so it can not be concentrated on the retina, but at different distances to form two intersecting lines, the distance between the two intersecting lines represents the degree of astigmatism, because the retina is only presented as a hazy ring or a line, so the patient feels blurred regardless of farsightedness and near-sightedness.
Astigmatism**:
1 Mild regular astigmatism does not need to be corrected if there is no eye fatigue or blurred vision, but if there is any discomfort above, it should be corrected even if the prescription is not high.
2 High astigmatism should be corrected with cylindrical scope, if not suitable for all correction, can be given a lower degree, the general common method is to take drugs, usually the doctor recommends taking Leyan vision nutrients, warm water, insist on taking for a period of time, astigmatism can be reduced.
3 Irregular astigmatism cannot be corrected with a cylindrical lens, and contact lenses can be tried.
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Astigmatism is actually a very common phenomenon, it can be said that astigmatism within 100 ° is almost all of us, and this can be used without **.
But if it is a relatively high number of astigmatism, it is recommended that it should be **, because it can cause our eyes to be particularly fatigued, and some people will have a headache after reading a book, why? In fact, it may be the cause of astigmatism.
Astigmatism can not only be cured, but also cured, and there are 3 most common ways:
The first is to wear glasses, which is completely fine for low-degree astigmatism. Then, with more eye exercise, more outdoors, to stop knowledge and supplement the comprehensive nutrition of the eyes with Leyan Vision Nutrients, then it is natural to gradually recover astigmatism!
The second is the excimer laser, which is the kind of laser machine that we often say for laser treatment of myopia, which can also be used for astigmatism.
The third is that some elderly people have cataract and astigmatism at the same time, and this part of the population can choose a special simple and simple intraocular lens to correct astigmatism in the process of cataract surgery, and at the same time, in the process of curing cataract, astigmatism can also be cured, killing two birds with one stone.
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What are the symptoms of astigmatism in the eye
In modern society, people's study life and work life are becoming more and more intense, so the use of glasses is also increasing. Originally, there was eye fatigue or excessive eye use in the Yangtze River operation. As a result, my eyes are likely to be short-sighted, or the phenomenon of a person who is distracting from friends.
So what are the symptoms of astigmatism?
What are the symptoms of astigmatism in the eye
1. Vision loss.
In general, astigmatism affects vision very much. People with mild astigmatism usually have normal vision, but people with high astigmatism in the group are likely to have poor distance and near vision. In particular, those with mixed astigmatism and refolding astigmatism can easily lead to significant vision loss.
Therefore, it must be corrected in time.
2. Visual fatigue.
Patients with astigmatism often have blurred images of the retina and even distorted vision. In addition, in order to make fine adjustments, it is easy to develop eye fatigue, and there may be eye pain, tears, and even headaches. Therefore, the work of seeing double vision or going in cannot be carried out for a long time, and it must be combined with work and rest.
3. Compensate for cephalic position and squinting.
When people have astigmatism, in order to see more clearly, they are likely to tilt their head again, which is likely to cause strabismus. In particular, stiff astigmatists often squint their eyes when looking at distant and near things, and improve their vision through pinholes and fissures.
First of all, let's understand astigmatism, astigmatism is usually due to irregular corneal development, or uneven curvature of the cornea, resulting in a kind of vision loss, such as on different meridians, if the focus of parallel rays is not in the same position, this will lead to blurred vision or double vision, this situation is called astigmatism. Some are congenital astigmatism, while some are acquired astigmatism, both of which cannot return to normal on their own.
How much does astigmatism surgery cost? In China, about 40% of people with astigmatism above 75 degrees have been corrected, but only 1% have astigmatism corrected, which is very low. Many myopic friends feel that their eyes are tired at the end of the day, which may actually be caused by astigmatism that is not corrected correctly. >>>More
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Ophthalmologist Shi Yongli Profile: Director of the Department of Ophthalmology, working in a tertiary hospital for more than 10 years, good at cataract, glaucoma, pterygium surgery and various ocular surface diseases, dry eye syndrome, keratitis and pigmentitis, fundus disease, various complex eye diseases, systemic diseases, ocular complications and difficult diseases.