Sensitivity and specificity of the 76-suprathreshold visual field test to detect eyes with visual field defect by Humphrey threshold testing in a population-based setting: the Thessaloniki eye study☆
Abstract
Purpose
To evaluate the screening performance of the 76-Suprathreshold (76-STHR) visual field test to detect eyes with visual field defect (VFD) as measured by Humphrey threshold testing in a population-based setting.
Design
Cross-sectional study.
Methods
All 88 subjects who agreed to participate in the pilot phase of the Thessaloniki Eye Study were included. Participants underwent a 76-STHR visual field test followed by a 30-full threshold (30-2 FTHR) test (Humphrey field analyzer). One eye/subject was randomly selected and included in the analysis. Sensitivity and specificity rates of the 76-STHR to detect eyes with VFD by the 30 to 2 FTHR test were calculated.
Results
When eyes with borderline results in the 30 to 2 FTHR test were classified as having a VFD, sensitivity rates of the 76-STHR to detect eyes with VFD by the 30 to 2 FTHR were 85.2%, 77.8%, and 74.1%, whereas specificity rates were 70%, 78%, and 86%, depending on the cutoff used for the 76-STHR.
Conclusions
The 76-STHR test showed high sensitivity and low false-negative results at the “at least one point missed” cutoff level criterion to detect eyes with visual field defect by Humphrey threshold testing in a population-based setting. This criterion should be used when screening in a population-based study setting. By contrast, the 76-STHR would not be the appropriate screening test in a primary care setting with limited resources.
To access this article, please choose from the options below
☆ This study was supported by the International Glaucoma Association, London, United Kingdom, the Center for Eye Epidemiology, UCLA, Los Angeles, California, and the Health Future Foundation, Creighton University, Omaha, Nebraska.Biosketches and/or additional material at www.ajo.com
PII: S0002-9394(03)01133-4
doi:10.1016/j.ajo.2003.09.045
© 2004 Elsevier Inc. All rights reserved.
