Diagnostic Testing

Diagnostic Criteria For Pseudotumor Cerebri (Idiopathic Intracranial Hypertension)

Pseudotumor cerebri syndrome (PTC, also referred to as idiopathic intracranial hypertension [IIH]) is classically taught as presenting in young, overweight women of childbearing age, with a history of headaches and findings of bilateral optic nerve swelling, associated with an elevated intracranial pressure.  However, as with every "textbook" definition of a disease, there are atypical cases (children, men, thin people, older people), and so I am often confronted with some interesting diagnostic challenges when I am referred a patient that does not fit the typical picture of PTC who has bilateral optic nerve swelling.

Visual Fields: Introduction

Before we get started with the individual techniques of measuring visual fields, it's important to understand some basic terms and principles.  Entire books have been written about visual fields, so while this and similar articles are geared towards basic review, you may wish to check out some of the resources below to get more details.