About 1 in 3 people have astigmatism. This is a common refractive error occurred when your cornea and lens have mismatched curves and it distorts your vision at all distance. If you do not have astigmatism, the cornea and lens are ball-shaped and they reflect light from your environment onto your retina, which is how you see images of the world around you.
However, astigmatism makes your eye football-shaped and it interferes with the eye’s ability to focus images.
And astigmatism often comes with the symptoms like blurry vision. So, how to tell if you have an astigmatism? This post from Koalaeye Optical explains to you.
How to Tell If You Have an Astigmatism?
Although astigmatism is one of the most eye conditions, recognizing astigmatism is also very important. So, do I have astigmatism? Read the following part to know more about astigmatism symptoms.
Your cornea is in front of your eyeball. When light enters your cornea, it travels to the lens behind it. So, your lens focuses light onto the retina at the back of your eye, which is able to transfer the signals to your brain.
However, if you have astigmatism, the natural curve of your cornea and your lens are mismatched, This affects your eye’s ability to focus and your retina receives two different images, called a refractive error. This is the result of blurry vision.
Different degrees of astigmatism may lead to different extend of distorted vision. Nearsightedness makes far-away objects blurry and farsightedness makes close-up objects blurry, but astigmatism makes things blurry at every distance.
If you have astigmatism, you may also suffer from eyestrain. When you are trying to use your eyes, whether you are working at a computer or driving a car, your eyes are constantly adjusting and attempting to focus on a clear image. So, if you have astigmatism, you may suffer from eyestrain, squinting, dizziness and headaches.
Difficulty Seeing at Night
Another astigmatism symptom is that it would be difficult to see clearly in low light situations because your pupils dilate to let more light into your eyes and help to see better. But when you have astigmatism, this makes blurry vision worse.
If your eyes let more peripheral light in which can make lights look fuzzy and create a halo effect. Halos and glare from light can make it difficult to focus on tasks in the dark such as driving at night. You can read this post Will Astigmatism Affect Night Driving to know more.
So, if you have suffered the above astigmatism symptoms, you may have an astigmatism. But it is still recommended to see an eye doctor have an eye check.
To sum up, this post from Koalaeye Optical has shown how to tell if you have an astigmatism. If you have the above symptoms, have a check as soon as possible and the doctor will show you the reason and result. If you have any problems with glasses or sunglasses, you can leave a message in the comment zone or contact us via the email email@example.com and we will reply to you as soon as possible.