A comparison of catch trial methods used in standard automated perimetry in glaucoma patients

Michael Wall; Carrie K Doyle; Caridad F Brito; Kimberly R Woodward; Chris A Johnson

doi:10.1097/IJG.0b013e318168f03e

Back

A comparison of catch trial methods used in standard automated perimetry in glaucoma patients

Journal article

Peer reviewed

A comparison of catch trial methods used in standard automated perimetry in glaucoma patients

Michael Wall, Carrie K Doyle, Caridad F Brito, Kimberly R Woodward and Chris A Johnson

Journal of glaucoma, Vol.17(8), pp.626-630

12/2008

DOI: 10.1097/IJG.0b013e318168f03e

PMID: 19092457

View Online

Abstract

To compare the false-positive (FP) response rates between 2 methods used by the Humphrey Field Analyzer in glaucoma patients. One eye of one hundred and twenty glaucoma patients was tested twice within 2 months with 24-2 SITA Standard and 24-2 full threshold (FT) perimetric test procedures. FP rates were obtained with the response time window (RTW) method used by SITA and the blank presentation (BP) method of the size V FT procedure. False-negative (FN) catch trial rates were also examined. A repeated measure, 2 x 2 analysis of variance was used to examine error rates, and FP rates for visits 1 and 2 were regressed to investigate its relationship. For FP rates on the first 2 visits, glaucoma patients had no significant differences comparing RTW (SITA) with BP (FT) (1.99% vs. 1.88%) and higher mean FN rates (4.11% vs. 1.69%, P=0.001); the FP rates at visit 2 were similar (1.69% vs. 2.08%) and FN rates were lower for both methods at visit 2. However, when comparing patients with FP responses that occurred with both RTW and BP methods, RTW rates were lower (3.58% vs. 7.72%, P=0.007). The RTW method seems to underestimate FP response rates.

Predictive Value of Tests

Visual Field Tests - methods

Intraocular Pressure

Sensory Thresholds

Humans

Middle Aged

Optic Nerve Diseases - diagnosis

Glaucoma, Open-Angle - diagnosis

Male

False Positive Reactions

Fixation, Ocular

Vision Disorders - diagnosis

Visual Fields

Visual Field Tests - standards

Aged, 80 and over

Adult

Female

Aged

Optic Disk - pathology

Details

Title: Subtitle: A comparison of catch trial methods used in standard automated perimetry in glaucoma patients
Creators: Michael Wall - Department of Neurology, University of Iowa, College of Medicine, and Veterans Administration Hospital, Iowa City, IA, USA. michael-wall@uiowa.edu
Carrie K Doyle
Caridad F Brito
Kimberly R Woodward
Chris A Johnson
Resource Type: Journal article
Publication Details: Journal of glaucoma, Vol.17(8), pp.626-630
Publisher: United States
DOI: 10.1097/IJG.0b013e318168f03e
PMID: 19092457
ISSN: 1057-0829
eISSN: 1536-481X
Language: English
Date published: 12/2008
Academic Unit: Neurology; Ophthalmology and Visual Sciences
Record Identifier: 9983980048402771

Metrics

37 Record Views

7 Times Cited - Web of Science