When one eye is exposed to light, the other eye also constricts. Abnormal pupil size can be: Some people are born with unequal pupils. This can be a harmless physical feature or a sign of an eye ...

In cases of pathological anisocoria, medical professionals need to determine which pupil is abnormal by looking at how they react in different lights. In the light, the pupil that is bigger is ...

Band keratopathy or calcium deposits in the cornea and an irregular pupil are also complications of iritis. Iritis symptoms ...

If your pupils stay small even in dim light, it can be a sign that things in your eye aren't working the way they should. This is called abnormal miosis, and it can happen in one or both of your eyes.