Personal Research Assignment

Sophia Dunn

What is an Astigmatism?

An Astigmatism is when you eye isn't a perfect shape which makes things blurry. There are different types of an astigmatism. A corneal astigmatism is when the cornea of your eye is uneven which will cause blurry vision.The light will enter your eye it will enter uneven because of your cornea. It makes letters and words look "wavy". For example, the letter "D" might look like "B" if you have an astigmatism. There is another way you can get an astigmatism which is lens astigmatism. A lens astigmatism is when the lens on your eye is the wrong shape or isn't shaped correctly which then makes it hard to read and see letters and numbers. Both of these can be fixed with a number of different treatments.
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A video to further explain a Astigmatism

How can we correct it?

You can correct an astigmatism using 4 different ways. The first way is getting glasses. Proscription glasses have a lens that the light enters through that can actually improve the astigmatism. Most people choose glasses to improve there vision. The second option is contacts. Some people prefer contact lens because it gives a wider view and clearer vision, but that comes with regular cleaning your contact for your eye health. The 3rd option is called Ortho-K or Orthokeratology. This is a type of contact lenses that you were that as rigid lenses so it will over time reshape the cornea. You would only wear these to bed. Then there is the last option, it is procedure LASIK surgery or PRK surgery. PRK surgery removes superficial tissue as well as inner cornea tissue. LASIK surgery removes just inner cornea tissue. The producers will just reshape your cornea to erase the astigmatism. All of these are possible options, they just fit different people's lifestyle.

4 Facts

Fact 1

You can get Astigmatism from straining your eyes on a screen for too long. This is called Computer Vision Syndrome. This is when you stare or strain your eyes from a computer screen. My parents think I have this because I have astigmatism in both of my eyes.

Fact 2

Astigmatism can get worse the longer you don't correct it. As you get older your eye get worse because of hereditary and environmental. When you move your eyes across something and don't let them focus like reading number across a screen fast can cause astigmatism.

Fact 3

The effects of an astigmatism are headaches, blurry vision, fatigue, eye squinting, and discomfort.

Fact 4

A cornea astigmatism is more common than lens astigmatism.

Work Cited

Source 1

Questions Were Answered by Burt Dubow, OD, Gary Heiting, OD, and Charles Slonim, MD. "Astigmatism Q&A." All About Vision. N.p., n.d. Web. 04 Nov. 2016.

Source 2

"What Is Astigmatism?" American Academy of Ophthalmology. N.p., 21 Dec. 2015. Web. 04 Nov. 2016.

By Focusing a Circle of Light on the Cornea and Measuring Its Reflection, It Is Possible to Determine the Exact Curvature of That Area of the Cornea's Surface. This Measurement Is Particularly Critical in Determining the Proper Fit for Contact Lenses. A C. "Astigmatism." Astigmatism. N.p., n.d. Web. 03 Nov. 2016.
Source 4

"KidsHealth." Word! Astigmatism. The Nemours Foundation, n.d. Web. 24 Oct. 2016.

Source 5

Burkhart, Lisa. "Astigmatism." - What Is It, Symptoms, Causes, Risk Factors, Test, Treatment Options: University of Michigan Kellogg Eye Center. N.p., n.d. Web. 04 Nov. 2016.

Source 6

"Computer Vision Syndrome." Computer Vision Syndrome. N.p., n.d. Web. 05 Nov. 2016.

Source 7

By Mikael Häggström, via Wikimedia Commons. "Ten Things to Know about Astigmatism - Better Vision Guide." Better Vision Guide. N.p., n.d. Web. 05 Nov. 2016.