Baseline visual field findings in the Idiopathic Intracranial Hypertension Treatment Trial (IIHTT).

ABSTRACT:

Purpose

To characterize visual field (VF) loss at the baseline visit and to evaluate VF quality control (QC) procedures in the Idiopathic Intracranial Hypertension Treatment Trial (IIHTT).

Methods

The Visual Field Reading Center (VFRC) evaluated 660 baseline VFs (1320 hemifields) from 165 enrolled patients. Three readers independently classified each superior and inferior hemifield and identified any abnormalities. A subset (20%) of the hemifields was reread to evaluate within- and between-reader agreements. The QC system addressed test parameters, patient data, and shipment errors.

Results

The majority (60%) of the baseline hemifields consisted of localized nerve fiber bundle-type VF loss. Approximately one-third (31.5%) of all the classifications consisted of partia

SUBMITTER: Keltner JL 

PROVIDER: S-EPMC4031894 | biostudies-literature | 2014 Apr

REPOSITORIES: biostudies-literature