How to protect eyes with astigmatism

Written by Wang Fang
Ophthalmology
Updated on September 04, 2024
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Some patients have congenital astigmatism, while most of the patients have acquired astigmatism. The occurrence of astigmatism is mostly due to improper sitting posture. It is caused by looking at objects from an inclined angle rather than directly from the eyes' proper axis. Especially lying down while reading or using smartphones can easily lead to an increase in astigmatism. If astigmatism is not corrected, it can easily worsen eye fatigue, thereby inducing a further increase in the degree of vision problems. In daily life, it is important to correct poor sitting postures and avoid situations such as lying down while reading or using smartphones. Engage more in outdoor activities, and limit reading sessions to no more than half an hour at a time. Consuming more vitamins A, D, C, E, and lutein in the diet can also help in preventing astigmatism.

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Written by Li Zhen Dong
Ophthalmology
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Can pseudomyopia cause astigmatism?

Pseudomyopia generally does not involve astigmatism. Pseudomyopia is caused by ciliary muscle spasm, while astigmatism is due to changes in the curvature of the cornea, or changes in the eyeball itself; these two are not the same. Pseudomyopia can be completely cured with proactive treatment, adequate rest, reducing close-up activities, avoiding eye fatigue, and using eye drops that alleviate ciliary muscle paralysis, such as low-concentration atropine eye drops and digoxin eye drops. If not treated actively, prolonged pseudomyopia can turn into true myopia. True myopia involves elongation of the eye axis, leading to blurred distance vision but clear near vision. Therefore, when this occurs, a proper dilated refraction test should be conducted. (Medication should be used under the guidance of a physician.)

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Written by Tao Yuan
Ophthalmology
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Can myopia surgery correct astigmatism?

Myopia surgery can also remove astigmatism. Both myopia and astigmatism are common ophthalmological diseases, and they are different types of refractive errors that can occur simultaneously. Currently, there are various surgical methods to correct myopia, such as excimer laser surgery, full femtosecond laser surgery, half femtosecond laser surgery, and posterior chamber intraocular lens implantation for phakic eyes. Whatever the type of surgery mentioned, it can correct and treat myopia while simultaneously removing the patient's astigmatism. Prior to surgery, a detailed optometric examination and ocular examination are required. Based on the patient's eye condition and specific degrees of myopia and astigmatism, a corresponding surgical plan is designed.

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Written by Wang Fang
Ophthalmology
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What foods should be eaten for astigmatism?

For astigmatism, it is important in daily life to consume a diet rich in proteins, vitamins, and carotenes, such as meat, eggs, dairy, various fresh fruits and vegetables, and carrots. It is advisable to avoid spicy and irritating foods. If astigmatism occurs, it is important to visit a hospital for an optometric examination promptly. If there is significant astigmatism, it should be corrected with glasses based on a medical optometric examination, as uncorrected astigmatism can lead to severe eye strain over time.

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Written by Tao Yuan
Ophthalmology
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Why is astigmatism more serious than nearsightedness?

Astigmatism and myopia are both common eye diseases and are two different types of refractive errors. Under the same degree of refractive error, astigmatism can cause more damage to visual function than myopia. This is because patients with astigmatism usually experience abnormal development of the cornea, leading to different refractive powers in different directions. As a result, when light passes through the cornea and enters the eye, it cannot converge to form a single focus, but instead forms a line intersection, which greatly affects the quality of vision. On the other hand, myopia is caused by an overly long eye axis or excessive corneal refractive power. When light passes through the cornea and enters the eye, although it cannot focus accurately on the retina, it can still form a focus. Therefore, the impact on vision is less severe than that of astigmatism.

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Written by Tao Yuan
Ophthalmology
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Will nearsightedness and astigmatism lead to blindness?

Myopia and astigmatism are common eye diseases and belong to two types of refractive errors, which can occur together. Myopia combined with astigmatism can lead to a decrease in vision, but it will not cause blindness. For patients with myopia and astigmatism, there are various methods to correct and treat these conditions, such as wearing frame glasses, rigid corneal contact lenses, undergoing laser surgery, or implanting artificial lenses to restore vision. In daily life, it is also important to develop good eye habits, avoiding using eyes in dim and shaking environments, and reducing the time spent on smartphones, TVs, and computers to prevent and delay the progression of myopia and astigmatism.