PRBS-determined temporal frequency characteristics of VEP in glaucoma

Author

Momose, K. ; Kiyosawa, M. ; Nemoto, N. ; Mori, H. ; Okuyama, F. ; Kimura, Y.

Author_Institution

Dept. of Electr. & Electron. Eng., Kanagawa Inst. of Technol., Japan

Volume

1

fYear

1999

fDate

1999

Abstract

The purpose of this study was to determine whether the PRBS- determined temporal frequency characteristics (TFC) of the VEP are valid and useful in evaluating the properties of the visual system of glaucomatous patients TFCs of VEP were measured from 15 normal eyes and 31 eyes with primary open angle or low-tension glaucoma. Glaucomatous eyes were divided into 3 groups according to their visual field defect. The mean TFC values at 4-8, 14-20 and 26-30 Hz were statistically different in normal and three glaucoma groups (ANOVA, P<0.05). With the progression of glaucoma, part of the TFC values were selectively depressed and later almost all values were depressed significantly. This correlation between the TFCs and the glaucomatous changes indicates that the PRBS- determined TFC is useful for evaluating glaucomatous eyes

Keywords

frequency-domain analysis; medical signal processing; vision defects; visual evoked potentials; 4 to 48 Hz; PRBS-determined temporal frequency characteristics; VEP analysis; electrodiagnostics; glaucoma progression; glaucomatous eyes evaluation; visual field defect; visual system properties; Humans; Identity-based encryption; Shape; Visual system;

fLanguage

English

Publisher

ieee

Conference_Titel

[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint

Conference_Location

Atlanta, GA

ISSN

1094-687X

Print_ISBN

0-7803-5674-8

Type

conf

DOI

10.1109/IEMBS.1999.802504

Filename

802504