Skip to content

What does it mean when one eye is dilated and the other is constricted?

What does it mean when one eye is dilated and the other is constricted?

Normally the size of the pupil is the same in each eye, with both eyes dilating or constricting together. The term anisocoria refers to pupils that are different sizes at the same time. The presence of anisocoria can be normal (physiologic), or it can be a sign of an underlying medical condition.

What does it mean if one pupil is dilated?

Benign Episodic Unilateral Mydriasis. This condition means only one pupil is dilated. It’s called “benign” because it’s not related to any serious conditions, but it can sometimes affect young women who get migraines. The pupil usually goes back to normal size within a few hours, but it can last for several days.

What does it mean when your pupils are constricted in one eye?

Your iris (the colored part of your eye) opens and closes to change the size of the pupil. Miosis can occur in one or both eyes. When it affects only one eye, it’s also called anisocoria. Another name for miosis is pinpoint pupil. When your pupils are excessively dilated, it’s called mydriasis.

How to find out if you have tearing in one eye?

WebMD Symptom Checker helps you find the most common symptom combinations and medical conditions related to tearing in one eye. Click on the combination that matches your symptoms to find the conditions that may cause these problems. Or click on “See All Conditions” to see every condition related to tearing in one eye.

What causes one side of your eyes to be smaller than the other?

Or you may have glaucoma, which means there’s too much pressure inside your eyeball. Horner’s syndrome: This rare condition affects the way your brain “talks” to one side of your face, including one of your eyes. It can make one of your pupils smaller than the other.

What does it mean when your pupils are dilated in one eye?

Miosis can occur in one or both eyes. When it affects only one eye, it’s also called anisocoria. Another name for miosis is pinpoint pupil. When your pupils are excessively dilated, it’s called mydriasis. There are many causes of miosis. It can be a symptom of certain brain and nervous system conditions.

Your iris (the colored part of your eye) opens and closes to change the size of the pupil. Miosis can occur in one or both eyes. When it affects only one eye, it’s also called anisocoria. Another name for miosis is pinpoint pupil. When your pupils are excessively dilated, it’s called mydriasis.

What does it mean when one eye is bigger than the other?

Anisocoria (“an-eye-so-CORE-ee-ah”) means you have unequal pupils. One pupil may be bigger than normal (dilated), or one pupil may be smaller than normal (constricted), resulting in different sized pupils.

WebMD Symptom Checker helps you find the most common symptom combinations and medical conditions related to tearing in one eye. Click on the combination that matches your symptoms to find the conditions that may cause these problems. Or click on “See All Conditions” to see every condition related to tearing in one eye.

Miosis can occur in one or both eyes. When it affects only one eye, it’s also called anisocoria. Another name for miosis is pinpoint pupil. When your pupils are excessively dilated, it’s called mydriasis. There are many causes of miosis. It can be a symptom of certain brain and nervous system conditions.