Skip to content

Eye Health Center

Font Size

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.

Recommended Related to Eye Health

Saving on Eye Care: Bargains and Risks

In a tough economy, saving money is on everyone's mind. But when it comes to eye care, experts say that what you do to save money today may put you at risk of much higher costs in the future. "As people try to ration their income, they will often choose to forgo or skip their routine eye exam," says Samuel Pierce, OD, a Trussville, Ala.-based optometrist and a board member of the American Optometric Association. "It's penny-wise and health care-foolish."

Read the Saving on Eye Care: Bargains and Risks article > >

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.

    WebMD Medical Reference from Healthwise

    Last Updated: June 04, 2014
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
    Next Article:

    Eye Problems: Changes in Your Pupils Topics

    Today on WebMD

    Woman holding tissue to reddened eye
    Learn about causes, symptoms, and treatments.
    Simple annoyance or the sign of a problem?
    red eyes
    Symptoms, triggers, and treatments.
    blue eye with contact lens
    Tips for wearing and caring.
    Understanding Stye
    human eye
    eye exam timing
    vision test
    is vision correction surgery for you
    high tech contacts
    eye drop