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.
Macular dystrophy is a rare, genetic eye disorder that causes vision loss. Macular dystrophy affects the retina in the back of the eye. Specifically, it leads to damage of cells in an area in the retina called the macula. The macula is responsible for central vision. When the macula is damaged, people have difficulty seeing straight ahead. This makes it difficult to read, drive, or perform other daily activities that require fine, central vision. In macular dystrophy, a pigment builds up in cells...
Read the Macular Dystrophy 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
On Eye Health
Today in Eye Health
Health Solutions From Our Sponsors
©2005-2012 WebMD, LLC. All rights reserved.
WebMD does not provide medical advice, diagnosis or treatment. See additional information.