Eye Problems: Changes in Your Pupils

With an injury to the eye, the muscles that control the pupil size and shape can be damaged. These muscles control the ability of the pupil to change in size and keep its round shape. An injury that punctures the eyeball may tear the colored part (iris) of the eye, causing it to lose its round shape. An injury to the…

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Medical review: Adam Husney MD, Kathleen Romito MD, William H. Blahd Jr. MD FACEP

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This information does not replace the advice of a doctor. Healthwise, Incorporated, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

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Eye Problems: Changes in Your Pupils

Topic Overview

With an injury to the eye, the muscles that control the pupil size and shape can be damaged. These muscles control the ability of the pupil to change in size and keep its round shape.

An injury that punctures the eyeball may tear the colored part (iris) of the eye, causing it to lose its round shape.

An injury to the eye may also cause the pupils to react differently to light or to be different sizes.

Call your doctor for an evaluation if you have a change in the size or shape of your pupil after an injury to your eye.

Credits

Current as ofJune 26, 2019

Author: Healthwise Staff
Medical Review: William H. Blahd, Jr., MD, FACEP – Emergency Medicine
Adam Husney, MD – Family Medicine
Kathleen Romito, MD – Family Medicine

This information does not replace the advice of a doctor. Healthwise, Incorporated, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.