When you check the pupils, look for changes in the pupil reaction,
such as changes in the size of the pupils or the way they react to light. These
changes may be signs of a head injury and need to be reported to your health
When you check someone's pupils, look for changes from what is normal
for that person. Some people's pupils are not normally equal in size or shape.
This may occur after certain types of eye surgery. Use of some eye medications
may also affect pupil size or the way the pupils react to light.
It is not possible to prevent chronic open-angle glaucoma, but early detection and effective treatment will prevent significant damage to the eyes and preserve your sight. All adults need an eye exam that includes tests for glaucoma every three to five years. These tests are usually done by an eye doctor -- either an optometrist or an ophthalmologist. If someone in your family has had glaucoma or if you have other risk factors for glaucoma, your doctor may suggest more frequent eye exams.