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Eyes/pupils different size
Alternative namesEnlargement of one pupil; Pupils of different size; Anisocoria
DefinitionOne pupil (of the eye) is a different size from the other one.
ConsiderationsOccasionally, differing pupil size is inherited and there is no underlying disorder. If other family members also have this condition, then pupil size is probably genetic and is nothing to worry about.
Occasionally, for unknown reasons, pupils may differ in size. If there are no other symptoms and if the pupils return to normal, then the transient condition is nothing to worry about.
Head injuries that cause differing pupil sizes are usually curable with early recognition of danger signs and medical treatment. Complications, however, can be life-threatening or cause permanent disability.
Home CareTreatment depends on the cause of the enlargement of one pupil. For example:
Call your health care provider if
The medical history will be obtained and a physical examination performed.
Medical history questions documenting differing pupil size in detail may include:
Diagnostic tests that may be performed include:
Depending on the diagnosis, medications may be prescribed including cortisone (to diminish swelling of the brain tissue), anticonvulsant drugs (to control seizures), pain relievers, antibiotics (for bacterial meningitis), or anticancer drugs.
After seeing your health care provider, you may want to add a diagnosis related to enlargement of one pupil to your personal medical record.
Update Date: 5/8/2003Elaine T. Kiriakopoulos, M.D., M.Sc., Department of Neurology, Beth Israel Deaconess Medical Center, Harvard University, Boston, MA. Review provided by VeriMed Healthcare Network.
Last updated: Tue, 06 Jan 2009 00:20:03 GMT