Learn About Astigmatism

What is the definition of Astigmatism?

Astigmatism is a type of refractive error of the eye. Refractive errors cause blurred vision. They are the most common reason why a person goes to see an eye professional.

Other types of refractive errors are:

  • Farsightedness
  • Nearsightedness
Save information for later
Sign Up
What are the causes of Astigmatism?

People are able to see because the front part of the eye (cornea) is able to bend (refract) light and focus it onto the retina. This is the back inside surface of the eye.

If the light rays are not clearly focused on the retina, the images you see may be blurry.

With astigmatism, the cornea is abnormally curved. This curve causes vision to be out of focus.

The cause of astigmatism is unknown. It is most often present from birth. Astigmatism often occurs together with nearsightedness or farsightedness. If astigmatism gets worse, it may be a sign of keratoconus.

Astigmatism is very common. It sometimes occurs after certain types of eye surgery, such as cataract surgery.

What are the symptoms of Astigmatism?

Astigmatism makes it hard to see fine details, either close up or from a distance.

Not sure about your diagnosis?
Check Your Symptoms
What are the current treatments for Astigmatism?

Mild astigmatism may not need to be corrected.

Glasses or contact lenses will correct astigmatism, but do not cure it.

Laser surgery can help change the shape of the cornea surface to eliminate astigmatism, along with nearsightedness or farsightedness.

Who are the top Astigmatism Local Doctors?
Elite
Highly rated in
6
conditions
Ophthalmology

Stanford Health Care

Corneal And External Eye Diseases

2452 Watson Ct 
Palo Alto, CA 94303

Edward Manche is an Ophthalmologist in Palo Alto, California. Dr. Manche has been practicing medicine for over 26 years and is rated as an Elite doctor by MediFind in the treatment of Astigmatism. He is also highly rated in 6 other conditions, according to our data. His top areas of expertise are Astigmatism, Nearsightedness, Corneal Dystrophy and Perceptive Deafness, and Macular Corneal Dystrophy Type 1. He is licensed to treat patients in California. Dr. Manche is currently accepting new patients.

Elite
Highly rated in
17
conditions
Ophthalmology

Penn State Health

Penn State Eye Center

200 Campus Dr 
Hershey, PA 17033

Seth Pantanelli is an Ophthalmologist in Hershey, Pennsylvania. Dr. Pantanelli has been practicing medicine for over 13 years and is rated as an Elite doctor by MediFind in the treatment of Astigmatism. He is also highly rated in 17 other conditions, according to our data. His top areas of expertise are Astigmatism, Cataract, Macular Corneal Dystrophy Type 1, and Dry Eye Syndrome. He is licensed to treat patients in Pennsylvania and Florida. Dr. Pantanelli is currently accepting new patients.

 
 
 
 
Learn about our expert tiers
Learn more
Elite
Highly rated in
12
conditions

University Of Heidelberg

International Vision Correction Research Centre 
Heidelberg, BW, DE 

Gerd Auffarth is in Heidelberg, Germany. Auffarth is rated as an Elite expert by MediFind in the treatment of Astigmatism. They are also highly rated in 12 other conditions, according to our data. Their top areas of expertise are Cataract, Astigmatism, Presbyopia, and Aniridia.

What is the outlook (prognosis) for Astigmatism?

Astigmatism may change with time, requiring new glasses or contact lenses. Laser vision correction can most often eliminate, or greatly reduce astigmatism.

What are the possible complications of Astigmatism?

In children, uncorrected astigmatism in only one eye may cause amblyopia.

When should I contact a medical professional for Astigmatism?

Call your health care provider or ophthalmologist if vision problems worsen, or do not improve with glasses or contact lenses.

Astigmatism
Visual acuity test
What are the latest Astigmatism Clinical Trials?
Successful Treatment of Residual Hypermetropic Refraction on Pseudophakic Patients Using Allogenic Fresh Myopic Lenticule Implantation With ReLex-Smile Surgery
Match to trials
Find the right clinical trials for you in under a minute
Get started
Visual Outcomes and Rotational Stability of the Acrysof IQ Vivity Toric Extended Vision Intraocular Lens
What are the Latest Advances for Astigmatism?
Two Surgical Approaches for Intraocular Lens Dislocation: Pars Plana Vitrectomy Versus Core Vitrectomy with Lens Exchange.
Femtosecond laser-assisted in situ keratomileusis with topography-guided or asphericity-adjusted derived data: a comparative contralateral eye study.
Tired of the same old research?
Check Latest Advances
Peripheral Refraction and Contrast Detection Sensitivity in Pseudophakic Patients Implanted With a New Meniscus Intraocular Lens.
Who are the sources who wrote this article ?

Published Date : August 18, 2020
Published By : Franklin W. Lusby, MD, ophthalmologist, Lusby Vision Institute, La Jolla, CA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

What are the references for this article ?

Chiu B, Young JA. Correction of refractive errors. In: Yanoff M, Duker JS, eds. Ophthalmology. 5th ed. Philadelphia, PA: Elsevier; 2019:chap 2.4.

Jain S, Hardten DR, Ang LPK, Azar DT. Excimer laser surface ablation: photorefractive keratectomy (PRK), laser subepithelial Keratomileusis (LASEK), and Epi-LASIK. In: Yanoff M, Duker JS, eds. Ophthalmology. 5th ed. Philadelphia, PA: Elsevier; 2019:chap 3.3.

Olitsky SE, Marsh JD. Abnormalities of refraction and accommodation. In: Kliegman RM, St. Geme JW, Blum NJ, Shah SS, Tasker RC, Wilson KM, eds. Nelson Textbook of Pediatrics. 21st ed. Philadelphia, PA: Elsevier; 2020:chap 638.