What should I do if I have astigmatism in my eyes?

Written by Wang Fang
Ophthalmology
Updated on September 01, 2024
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Astigmatism should be corrected by wearing astigmatic lenses. Astigmatism is a type of refractive error where the refractive power of the eye varies along different axes, resulting in a refractive abnormality. Particularly with high degrees of astigmatism, there may be symptoms such as blurred vision, distorted vision, or even eye fatigue. Therefore, once astigmatism is detected, it is important to visit a hospital for a medical eye examination promptly. It is recommended that astigmatism of 50 to 75 degrees or more should be timely corrected with glasses, otherwise prolonged uncorrected astigmatism can lead to severe eye fatigue. Additionally, if adult patients have other refractive errors such as myopia along with astigmatism, they could also consider undergoing laser surgery for myopia correction.

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Written by Lian Wen Xi
Pediatrics
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Astigmatism in children is caused by what?

The majority of astigmatism in children is caused by congenital factors, that is, genetic factors. If one or both parents of the child have astigmatism, the probability of the child having astigmatism is higher than that of other children. There are also a few cases where a child's astigmatism is caused by acquired factors, such as surgery, trauma, or illness, all of which may cause changes in the curvature of the cornea and lens. Additionally, a lack of outdoor activities and poor eye habits might also promote the development of astigmatism. It is recommended that once a child is diagnosed with astigmatism, they should go to a reputable hospital for examination and then get appropriate treatment to improve the condition, otherwise, it could impact their vision.

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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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Will astigmatism cause the pupils to enlarge?

Astigmatism of the eye is a type of refractive error caused by an uneven curvature of the cornea's surface, resulting in different refractive powers along different axes. Once astigmatism occurs, particularly with a high degree of astigmatism, there can be a noticeable decrease in vision, distortion in sight, or in severe cases, significant eye fatigue. However, it generally does not lead to pupil dilation. Pupil dilation is caused by the paralysis of the ciliary muscle due to internal and external factors, resulting in enlarged pupils. Therefore, if symptoms of astigmatism appear, it is advisable to visit a hospital promptly for accurate diagnosis and appropriate treatment.

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Written by Tao Yuan
Ophthalmology
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Can nearsightedness with astigmatism undergo laser surgery?

Myopia and astigmatism are common eye diseases that are two different types of refractive errors but often occur together. Patients with both myopia and astigmatism who are over 18 years old and have stable prescriptions for more than a year can undergo laser surgery treatment. During the laser surgery, both myopia and astigmatism can be corrected simultaneously. Before undergoing surgery, patients need to visit the ophthalmology department of a hospital for an in-person consultation and examination. The exact degrees of myopia and astigmatism are determined through refraction tests, while corneal topography and ophthalmic ultrasound are used to assess the corneal curvature and thickness to determine if the patient is suitable for corrective laser surgery.

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Written by Wang Fang
Ophthalmology
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How to protect eyes with astigmatism

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.