9. Pupil alterations
In many patients with migraines, you will find an asymmetric pupil, one that either dilates more than the other or does not dilate properly. This is usually seen in cluster headaches, ocular migraines, and migraines associated with ocular pain and similar signs and symptom. Pupil asymmetry is an essential sign to diagnose this type of migraine and is usually encountered by the doctor, who has the equipment and skill to evaluate the correct pupilar function of the eye.