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Astigmatism - MedlinePlus
Astigmatism is a type of refractive error of the eye. Refractive errors cause blurred vision and are the most common reason why a person goes to see an eye professional.
https://medlineplus.gov/ency/article/001015.htm
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Astigmatism - Encyclopedia
Astigmatism is the result of an inability of the cornea to properly focus an image onto the retina. The result is a blurred image.
http://www.encyclopedia.com/topic/astigmatism.aspx
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Astigmatism - PatientInfo
The main symptom of astigmatism is blurred vision. It occurs because the cornea at the front of the eye is unevenly curved. Eyesight problems, such as astigmatism, are also known as refractive errors. Astigmatism is a common condition that can be corrected by glasses or contact lenses, or cured with laser eye surgery.
http://patient.info/health/astigmatism
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Astigmatism - NHS Choices
Astigmatism is a common and usually minor condition of the eye that causes blurred or distorted vision.
http://www.nhs.uk/Conditions/Astigmatism/Pages/Introduction.aspx
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Astigmatism: Causes, Symptoms and Treatments - Medical News Today
Astigmatism is an eye condition with blurred vision as its main symptom. Learn about the causes of astigmatism, symptoms, diagnosis and treatment options such as laser surgery.
http://www.medicalnewstoday.com/articles/158810.php
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Correcting Astigmatism with GP Contact Lenses
An explanation of astigmatism, and how GP contacts can work better than soft toric contacts to correct it.
http://www.contactlenses.org/astigmatism.htm
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Astigmatism: What Is It? - Kellogg
What is Astigmatism - this comprehensive overview covers symptoms, causes, risk factors, tests and diagnosis, treatment options.
http://www.kellogg.umich.edu/patientcare/conditions/astigmatism.html
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Astigmatism - Mayo Clinic
Astigmatism - Comprehensive overview covers symptoms, causes, treatment of this irregular eye curvature.
http://www.mayoclinic.org/diseases-conditions/astigmatism/basics/definition/con-20022003
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Astigmatism (Eye) - Wikipedia, the Free Encyclopedia
Astigmatism is an optical defect in which vision is blurred due to the inability of the optics of the eye to focus a point object into a sharp focused image on the retina.
https://en.wikipedia.org/wiki/Astigmatism_(eye)
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Facts About Astigmatism - National Eye Institute
National Eye Institute, NIH, is dedicated to vision research that saves sight & reduces visual impairment & blindness.
https://nei.nih.gov/health/errors/astigmatism
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Astigmatism: Causes, Symptoms, Diagnosis, and Treatment - WebMD
Astigmatism is a common eye condition which is easily corrected. WebMD explains.
http://www.webmd.com/eye-health/astigmatism-eyes
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What Is Astigmatism? - American Academy of Ophthalmology
Astigmatism is an imperfection in the curvature of your cornea - the clear, round dome covering the eye's iris and pupil - or in the shape of the eye's lens, causing blurry or distorted vision.
http://www.aao.org/eye-health/diseases/what-is-astigmatism
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Astigmatism - American Optometric Association
Astigmatism is a vision condition that causes blurred vision due either to the irregular shape of the cornea, the clear front cover of the eye, or sometimes the curvature of the lens inside the eye. An irregular shaped cornea or lens prevents light from focusing properly on the retina, the light sensitive surface at the back of the eye. As a result, vision becomes blurred at any distance.
http://www.aoa.org/patients-and-public/eye-and-vision-problems/glossary-of-eye-and-vision-conditions/astigmatism?sso=y
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3 Astigmatism Types and How to Correct Them - All About Vision
Dr. Gary Heiting explains astigmatism symptoms, causes, types and correction with contact lenses and LASIK surgery. Plus, a video on astigmatism.
http://www.allaboutvision.com/conditions/astigmatism.htm
