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.
Alexic Anomia
(Alexia; Word Blindness; Text Blindness; Visual Aphasia)
Pronounced: ah-LEX-ee-ah ah-NOM-ee-ah
by
Mary Cresse
Definition
Alexic anomia happens when you lose your ability to understand written words. You can no longer read. This is a type of
aphasia
, which is a language disorder. It is caused by the brain not functioning correctly. This is a serious condition that may change over time, depending on the cause.
Causes
Alexic anomia is caused by damage to the language areas of the brain, for example:
Risk Factors
These factors increase your chance of developing alexic anomia:
Tell your doctor if you have any of these risk factors.
Symptoms
If you have any of these symptoms, do not assume it is due to alexic anomia. These symptoms may be caused by other conditions. Tell your doctor if you have any of these:
- Ability to write, but not read what you have written
- Inability to read with understanding
Diagnosis
Your doctor will ask about your symptoms and medical history. She will do a physical exam. To help differentiate alexic anomia from other, similar conditions, your doctor may perform a neurological examination, tests to check brain function, and/or order these tests:
- CT scan
—a type of x-ray that uses a computer to make pictures of structures inside the head
- MRI scan
—a test that uses magnetic waves to make pictures of structures inside the head
- PET scan
—a test that makes images showing the amount of functional activity in the brain
You may be referred to a neurologist. This is a doctor who specializes in diseases of the nervous system.
Treatment
Talk with your doctor about the best plan for you. Treatment options include the following:
- Counseling
—to help you cope with your condition and help your family learn how to better communicate with you
- Individualized rehabilitation program—to focus on what caused your condition
- Speech-language therapy—to help you use your remaining communication abilities, restore lost abilities, learn to compensate for language problems, and learn other methods of communicating
Prevention
Since stroke is the most common cause of aphasia, follow these guidelines to help prevent stroke:
Last reviewed: December 2010
by Rimas Lukas, MD.
References:
-
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American Medical Association Complete Medical Dictionary.
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Cornell Illustrated Encyclopedia of Health: The Definitive Home Medical Reference
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http://www.ebscohost.com/thisMarket.php?marketID=14
. Published 2002. Accessed November 5, 2008.
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http://www.ebscohost.com/dynamed/what.php
. Updated June 2007. Accessed November 17, 2008.
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Aphasia. EBSCO Patient Education Reference Center website. Available at:
http://www.ebscohost.com/thisTopic.php?marketID=16topicID=1034
. Updated November 2008. Accessed November 5, 2008.
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Cherny LR. Aphasia, alexia, and oral reading.
Top Stroke Rehabil
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2004;11:22-36.
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Freedman L, Selchen DH, Black SE, Kaplan R, Garnett ES, Nahmias C. Posterior cortical dementia with alexia: neurobehavioural, MRI, and PET findings.
J Neurol Neurosurg Psychiatry
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1991;54;443-448.
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Kirshner HS. Aphasia and aphasic syndromes. In: Bradley WG, Daroff RB, Fenichel GM, eds.
Neurology in Clinical Practice
.
5th ed. Philadelphia, PA: Butterworth Heniemann Elsevier; 2008: 141-160.
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NINDS aphasia information page. National Institute of Neurological Disorders and Stroke website. Available at:
http://www.ninds.nih.gov/disorders/aphasia/aphasia.htm
. Updated October 2008. Accessed November 5, 2008.
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Stedman TL.
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.
28th ed. Baltimore, MD: Lippincott Williams & Wilkins; 2005;48; 177; B13-B14.