Multifocal Chromatic Pupilloperimetry in Patients With Pseudotumor Cerebri and Healthy Subjects.

This study is testing a new type of eye exam — using coloured light and pupil responses — to detect vision problems in people with a condition called pseudotumor cerebri (increased pressure in the brain without an actual tumour), and comparing results to healthy individuals. **You may be eligible if...** - You are between 18 and 80 years old - You are either a healthy volunteer with normal vision, or a patient with pseudotumor cerebri - You are willing to give written informed consent **You may NOT be eligible if...** - You have significant eye disease unrelated to the study condition - You have poor vision that cannot be corrected - You have abnormal colour vision - You are unable to cooperate with eye testing Talk to your doctor to see if this trial is right for you.