Hello fellow veterans, I believe that many people do not know much about astigmatism. Therefore, today I will share with you some knowledge about astigmatism and what astigmatism is. , I hope it can help everyone and solve some of your confusions, let’s take a look below!
Contents of this article
- How to treat eye astigmatism
- How to treat astigmatism
- What is astigmatism
- How to treat astigmatism in eyes
- How much astigmatism is normal
- What is astigmatism
1. How to treat eye astigmatism
Astigmatism is caused by congenital genetic factors or developmental dysplasia. The current treatment for astigmatism can be to improve corrected vision by wearing glasses or orthokeratology lenses. If there are no contraindications after the age of 18, laser surgery can be used to correct it. Patients with astigmatism after laser surgery can no longer wear glasses or orthokeratology lenses, and their visual acuity can return to normal after surgery.
2. How to treat astigmatism
1. Mild astigmatism is not It affects vision and generally does not require treatment; moderate astigmatism can cause amblyopia and requires refractive correction; tension astigmatism requires investigation of the cause.
2. The main treatment methods for astigmatism include wearing glasses (including glasses and contact lenses, etc.), corneal refractive surgery (including corneal laser surgery, corneal refractive surgery, etc.) Marginal release incision, etc.) and astigmatism-correcting intraocular lens implantation.
3. What is astigmatism
Astigmatism means: when parallel After the light enters the eye, due to the unequal refractive power of the eyeball at different meridians, it cannot focus on one point (focus) and cannot form a clear object image. This situation is called astigmatism.
The axis of astigmatism refers to: the direction of astigmatism, generallyIt is in the range of 0-180 degrees. If there is no astigmatism, there will be no axis.
A survey shows that 35% to 40% of Chinese myopic people have astigmatism above 75 degrees, but many people ignore the correction of astigmatism.
Mild astigmatism (below 75 degrees) generally has little impact on vision. It is mainly related to the degree of eye fatigue. If you pay more attention and rest, it will disappear automatically;
However, people with sensitive eyes may also be prone to eye discomfort, such as eye soreness, eye fatigue, blurred vision, etc.;
If severe astigmatism is not corrected in time, in addition to the above symptoms, it will also cause amblyopia, distortion of vision, and double images of objects, just like this. ?
2. Look at the picture below with one eye to see whether the depth and thickness of each line are even;
3. Yes: It means there is no astigmatism or the astigmatism has been corrected; No: It means there is astigmatism or the astigmatism has not been corrected;
Of course, this is only a preliminary measurement of whether there is astigmatism. Method; and to the specific degree, you must go to a professional eye hospital for comprehensive medical optometry! ?
1. Pay attention to your eyes, do not rub your eyes with your hands, and do not squint your eyes frequently. These habits can easily lead to the occurrence and growth of astigmatism;
2. Pay attention to the intensity of the light when reading or playing with mobile phones. It should not be too dark or too dazzling, let alone flickering;?
3. Pay attention to a reasonable diet and ensure sleep; eat more foods containing carotene and zinc to enhance the resistance and regulation of the eyes;
4. Those who need glasses should not check at will, but must go to a regular hospital for optometry; if there is astigmatism, the degree of astigmatism should be added in time to correct it;
In fact, astigmatism, like myopia, is a relatively common refractive error;
However, if there is astigmatism, It is absolutely necessary to carry out timely correction to prevent astigmatism from deepening and further affecting eye health!
4. EyesHow to treat eye astigmatism
Astigmatism includes regular astigmatism and irregular astigmatism. Regular astigmatism is divided into regular astigmatism, anti-rule astigmatism and oblique-axis astigmatism. If it is regular astigmatism, you can use glasses to correct it, and try to match the astigmatism as much as possible. If the degree of astigmatism is high, those who cannot tolerate it can reduce the degree appropriately. You can also wear contact lenses to correct regular corneal astigmatism, such as rigid highly gas permeable contact lenses, also known as RGP. Of course, those who do not want to wear glasses can undergo corneal refractive surgery. For irregular astigmatism, you can only wear corneal contact lenses, such as RGP, for correction, or undergo corneal refractive surgery, such as excimer laser surgery or corneal transplantation.
5. How normal is astigmatism
Under normal circumstances, astigmatism The physiological range is within 75 degrees. If the degree of astigmatism is within 75 degrees, but it affects the naked eye vision, generally you need to add astigmatism when wearing glasses. If it does not have a big impact on the naked eye vision, it is not necessary. Special treatment. Therefore, it is generally stipulated that the normal physiological range of astigmatism is within 75 degrees.
6. What is astigmatism
1. Astigmatism ) is a refractive error, which means that the refractive power of the eyeball at different meridians is different. After the parallel light is refracted by the eye\’s refractive system, it cannot form a focus on the retina, but forms two focus lines, ultimately resulting in unclear vision on the retina. Image.
2. Astigmatism can be divided into regular astigmatism and irregular astigmatism. The former can be corrected with cylindrical spectacle lenses, while the other needs to be corrected with corneal contact lenses.
The article sharing is over. Do you know the answers to what astigmatism and astigmatism refer to? Welcome to visit this site again!
