What Causes Astigmatism in One Eye?
Jun 29, 2022
Source: Cainiu Health
Dr. Chen You
Introduction
Astigmatism in one eye is commonly caused by congenital factors, trauma, or ocular diseases. Most cases of astigmatism arise from variations in refractive power across different meridians of the eye during its development. This type of astigmatism is typically regular and can be corrected with glasses. Some cases of astigmatism develop after birth, such as those resulting from corneal trauma or ophthalmic surgery.
There are many causes of astigmatism, the most important of which is a change in corneal curvature. After developing astigmatism, individuals may experience various adverse symptoms, including blurred vision and visual fatigue; some patients may even suffer from dizziness. Therefore, timely treatment following diagnosis is essential, along with implementing appropriate daily care measures. So, what causes astigmatism in only one eye?
What Causes Astigmatism in Only One Eye?
Astigmatism affecting only one eye commonly arises from congenital factors, ocular trauma, or eye disease. Most cases of astigmatism result from variations in refractive power across different meridians of the eye during its developmental stage. This type is typically regular astigmatism and can be corrected with eyeglasses. Some cases develop after birth—for example, due to corneal injury or ophthalmic surgery. Such astigmatism may be irregular; if it significantly impairs vision, standard eyeglasses may prove insufficient for correction, and rigid gas-permeable or specialty contact lenses may be required.
Most patients develop eye diseases due to poor ocular hygiene. Thus, individuals with astigmatism should pay special attention to eye hygiene in daily life and avoid touching their eyes directly with their hands. This helps effectively prevent ocular infections, which—once developed—may exacerbate existing astigmatism. Patients with astigmatism should also consider their work environment: lighting should be appropriate, and direct light reflection on computer screens should be avoided, as glare can easily cause visual discomfort. Additionally, indoor dust should be cleaned regularly. It is advisable to open windows frequently to ensure proper air circulation indoors.
After being diagnosed with astigmatism, patients are generally advised to begin wearing corrective lenses as soon as possible to minimize its impact on daily activities and work performance. We hope this information has been helpful to you.
