What Are the Causes of Astigmatism Symptoms, and How Can They Be Prevented?

What Are the Causes of Astigmatism Symptoms, and

How Can They Be Prevented?

Because our eyes play an important role in seeing other objects, we need to take careful care of them in everyday life so that our vision does not decline.

However, in recent years, many people have been exposed to electronic devices such as smartphones and computers for long periods of time, which has led to problems such as dry eyes and declining vision.

Today, let’s learn about the causes of astigmatism, one of the representative eye conditions, as well as astigmatism symptoms and how to prevent them.

Inside the eye is a structure called the lens, which refracts light. If this lens does not function properly, eye conditions such as hyperopia, myopia, and astigmatism can occur.

Astigmatism refers to a refractive error in which light refracted by the cornea of the eye cannot focus at a single point and instead forms two or more focal points.

Most people have some degree of astigmatism, but if it becomes severe, it can affect vision enough to make daily life difficult.

The causes of astigmatism can be broadly divided into congenital and acquired cases. Congenital astigmatism occurs when children inherit the shape of their parents’ eyes as it is.

In most cases, the eye is a round, spherical shape, but people with astigmatism have a slightly tilted, oval-shaped eye.

In other words, in congenital cases, astigmatism is caused by the curvature of the corneas in both eyes, and the shape of the cornea resembles a rugby ball, with differences in the slope of the curved surface.

In acquired astigmatism, it occurs because the shape of the cornea changes. If the eyelid presses on the eye, the shape of the cornea can change and astigmatism may develop.

Astigmatism can also occur when the eyebrows touch the eyeball and alter the shape of the cornea, and if electronic devices are used for long periods of time, damage to the optic nerve can also lead to astigmatism.

Astigmatism can also result from inflammation or injury, and it can develop if abnormalities occur in the cataract or lens.

A representative symptom of astigmatism is that objects do not appear clearly. Unlike myopia and hyperopia, it is characterized by difficulty focusing on both near and distant objects.

If you strain your eyes to force an incorrect focus into place, the muscles can contract, and you may easily feel eye fatigue.

A way to treat astigmatism is to wear glasses, and if glasses are uncomfortable, contact lenses can be used to correct astigmatism.

To prevent astigmatism, it is a good idea to correct habits such as rubbing your eyes or touching them with your hands, and to block ultraviolet rays by wearing sunglasses.

Also, using electronic devices for long periods of time can put strain on your eyes, so you should reduce the time you spend using them and allow your eyes to rest.

Today, we looked at the causes of astigmatism, astigmatism symptoms, and how astigmatism can be treated and prevented. Please refer to this information.