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Astigmatism Definition & Overview

Definition

Astigmatism is a condition where vision is disordered (blurred, unfocused, fuzzy) because the cornea (the front surface of the eye) or lens, which is located behind the cornea, has an abnormal or irregular curve (misshaped). Astigmatism can occur in children as well as adults. Astigmatism is fairly common and not contagious.

There are two common types of astigmatism: corneal astigmatism and lenticular astigmatism.

  • Corneal astigmatism is when the cornea is misshaped.
  • Lenticular astigmatism is when the lens is misshaped.

There are several treatment options for astigmatism. If you suspect you have astigmatism, contact your doctor.

Normal Anatomy of the Eye

© 2009 Nucleus Medical Art, Inc.

Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition. Copyright © 2022 EBSCO Publishing All rights reserved.

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