Multifocal pupillary light response fields in normal subjects and patientswith visual field defects

Citation
L. Tan et al., Multifocal pupillary light response fields in normal subjects and patientswith visual field defects, VISION RES, 41(8), 2001, pp. 1073-1084
Citations number
30
Language
INGLESE
art.tipo
Article
Categorie Soggetti
da verificare
Journal title
VISION RESEARCH
ISSN journal
0042-6989 → ACNP
Volume
41
Issue
8
Year of publication
2001
Pages
1073 - 1084
Database
ISI
SICI code
0042-6989(200104)41:8<1073:MPLRFI>2.0.ZU;2-E
Abstract
The optimal conditions for recording focal pupillary light responses with a multifocal stimulation technique were determined, and the technique was ap plied to normal subjects and patients with visual held defects. Thirty-seve n hexagonal stimuli were presented on a TV monitor with a visual field of 4 0 degrees diameter under a constant background illumination. Using a slow ( 4.7 Hz) m-sequence, reliable focal responses were obtained in both normal s ubjects and patients. The pupillary held and visual field were well correla ted in patients with retinal diseases, but the correlation was not strong i n patients with optic-nerve diseases. Pupillary light responses were reduce d in the blind hemifield in patients with post-geniculate lesions. These re sults indicate that the multifocal stimulation technique can be used clinic ally to obtain a pupillary field for objective visual field testing. (C) 20 01 Elsevier Science Ltd. All rights reserved.