People Suddenly Realize They Have Astigmatism After This Comparison Photo Goes Viral

Viral Comparison Photos Alert People To The Fact They Have Astigmatism

Just when you think you’ve seen it all, the internet provides weird and interesting facts that you never knew. How much do you know about the eye? We know some people have perfect 20/20 vision, while others are blind as a bat, but what about all the eye conditions that come between. 

A photo from the Twitter account @UnusualFacts6 – ‘which deals with the ‘most weird and horrific facts on the internet’ – just went viral for showing the difference between what people with astigmatism see and what people without it see. 

Astigmatism is when the cornea is slightly curved and to see the way people with this condition experience lights is nothing short of illuminating.

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    Astigmatism is a refractive condition that occurs when the cornea (the front surface of the eye) or the lens inside the eye has mismatched curves. A normal eye has both the cornea and lens curved in a rounded shape, whereas people with astigmatism have one of these elements in an egg shape. In a perfect eye, the rounded shape of the cornea and lens refract any incoming light to produce a sharply focused image on the retina.

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    In an eye with a refractive error, the mismatched curves in the eye prevent the light rays from bending properly. The result is a blurry image. There are two different types of astigmatism: corneal astigmatism, where the mismatched curves occur in the cornea, and lenticular astigmatism where the curves in the lens are mismatched. Both cause blurry vision but can occur more horizontally, vertically or diagonally. This condition is most commonly present combined with another refractive error like nearsightedness (myopia) or farsightedness (hyperopia).

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    Blurry vision is not the only symptom of astigmatism, people with this condition can also experience eyestrain or discomfort, headaches, difficulty seeing at night. Some people are born with astigmatism and may not know they have it until they are screened for it during an eye test. People who discover they have astigmatism can still live relatively hassle-free lives. The most common way to treat the symptoms for astigmatism are glasses, contact lenses, and refractive surgery.

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    Refractive errors are the most common of the ocular problems among all age groups. According to studies and reports from the World Health Organization, they are also the first cause of visual impairments and the second cause of visual loss worldwide, as 43% of global visual impairments are due to refractive errors. Uncorrected refractive errors were the cause of blindness in 6.8 million people in 2010 worldwide. In the United States astigmatism occurs in 1 out of 3 people.

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