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 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. eMedicineHealth Medical Reference from Healthwise To
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